diff --git a/common/design_block_io.cpp b/common/design_block_io.cpp
index f60926350b..0601eb2425 100644
--- a/common/design_block_io.cpp
+++ b/common/design_block_io.cpp
@@ -293,6 +293,9 @@ DESIGN_BLOCK* DESIGN_BLOCK_IO::DesignBlockLoad( const wxString& aLibraryPath,
     wxString dbPcbPath = dbPath + aDesignBlockName + wxT( "." ) + FILEEXT::KiCadPcbFileExtension;
     wxString dbMetadataPath = dbPath + aDesignBlockName + wxT( "." ) + FILEEXT::JsonFileExtension;
 
+    if( !wxDir::Exists( dbPath ) )
+        THROW_IO_ERROR( wxString::Format( _( "Design block '%s' does not exist." ), dbPath ) );
+
     DESIGN_BLOCK* newDB = new DESIGN_BLOCK();
 
     // Library name needs to be empty for when we fill it in with the correct library nickname
@@ -339,16 +342,27 @@ DESIGN_BLOCK* DESIGN_BLOCK_IO::DesignBlockLoad( const wxString& aLibraryPath,
         }
         catch( ... )
         {
+            delete newDB;
             THROW_IO_ERROR( wxString::Format(
                     _( "Design block metadata file '%s' could not be read." ), dbMetadataPath ) );
         }
     }
 
-
     return newDB;
 }
 
 
+bool DESIGN_BLOCK_IO::DesignBlockExists( const wxString&                    aLibraryPath,
+                                         const wxString&                    aDesignBlockName,
+                                         const std::map<std::string, UTF8>* aProperties )
+{
+    wxString dbPath = aLibraryPath + wxFileName::GetPathSeparator() + aDesignBlockName + wxT( "." )
+                      + FILEEXT::KiCadDesignBlockPathExtension + wxFileName::GetPathSeparator();
+
+    return wxDir::Exists( dbPath );
+}
+
+
 void DESIGN_BLOCK_IO::DesignBlockSave( const wxString&                    aLibraryPath,
                                        const DESIGN_BLOCK*                aDesignBlock,
                                        const std::map<std::string, UTF8>* aProperties )
diff --git a/common/design_block_io.h b/common/design_block_io.h
index 9eb2b335ce..aa1598651b 100644
--- a/common/design_block_io.h
+++ b/common/design_block_io.h
@@ -76,10 +76,7 @@ public:
     }
 
     bool DesignBlockExists( const wxString& aLibraryPath, const wxString& aDesignBlockName,
-                            const std::map<std::string, UTF8>* aProperties = nullptr )
-    {
-        return DesignBlockLoad( aLibraryPath, aDesignBlockName, true, aProperties ) != nullptr;
-    }
+                            const std::map<std::string, UTF8>* aProperties = nullptr );
 
     DESIGN_BLOCK* ImportDesignBlock( const wxString&                    aDesignBlockPath,
                                      wxString&                          aDesignBlockNameOut,
diff --git a/common/tool/design_block_control.cpp b/common/tool/design_block_control.cpp
index fb230dd358..147cf0c796 100644
--- a/common/tool/design_block_control.cpp
+++ b/common/tool/design_block_control.cpp
@@ -26,6 +26,8 @@
 #include <widgets/design_block_pane.h>
 #include <widgets/panel_design_block_chooser.h>
 #include <dialog_design_block_properties.h>
+#include <mail_type.h>
+#include <kiway.h>
 
 
 DESIGN_BLOCK_CONTROL::~DESIGN_BLOCK_CONTROL()
@@ -88,9 +90,12 @@ int DESIGN_BLOCK_CONTROL::PinLibrary( const TOOL_EVENT& aEvent )
                                    PROJECT::LIB_TYPE_T::DESIGN_BLOCK_LIB );
         current->m_Pinned = true;
         getDesignBlockPane()->RefreshLibs();
+        notifyOtherFrames();
+
+        return 0;
     }
 
-    return 0;
+    return -1;
 }
 
 
@@ -104,17 +109,24 @@ int DESIGN_BLOCK_CONTROL::UnpinLibrary( const TOOL_EVENT& aEvent )
                                      PROJECT::LIB_TYPE_T::DESIGN_BLOCK_LIB );
         current->m_Pinned = false;
         getDesignBlockPane()->RefreshLibs();
+        notifyOtherFrames();
+
+        return 0;
     }
 
-    return 0;
+    return -1;
 }
 
 
 int DESIGN_BLOCK_CONTROL::NewLibrary( const TOOL_EVENT& aEvent )
 {
-    getDesignBlockPane()->CreateNewDesignBlockLibrary();
+    if( getDesignBlockPane()->CreateNewDesignBlockLibrary() != wxEmptyString )
+    {
+        notifyOtherFrames();
+        return 0;
+    }
 
-    return 0;
+    return -1;
 }
 
 
@@ -125,9 +137,13 @@ int DESIGN_BLOCK_CONTROL::DeleteDesignBlock( const TOOL_EVENT& aEvent )
     if( !current )
         return -1;
 
-    getDesignBlockPane()->DeleteDesignBlockFromLibrary( current->m_LibId, true );
+    if( getDesignBlockPane()->DeleteDesignBlockFromLibrary( current->m_LibId, true ) )
+    {
+        notifyOtherFrames();
+        return 0;
+    }
 
-    return 0;
+    return -1;
 }
 
 
@@ -139,7 +155,10 @@ int DESIGN_BLOCK_CONTROL::EditDesignBlockProperties( const TOOL_EVENT& aEvent )
         return -1;
 
     if( getDesignBlockPane()->EditDesignBlockProperties( current->m_LibId ) )
+    {
+        notifyOtherFrames();
         return 0;
+    }
 
     return -1;
 }
@@ -190,3 +209,12 @@ LIB_TREE_NODE* DESIGN_BLOCK_CONTROL::getCurrentTreeNode()
     LIB_TREE* libTree = getDesignBlockPane()->GetDesignBlockPanel()->GetLibTree();
     return libTree ? libTree->GetCurrentTreeNode() : nullptr;
 }
+
+
+void DESIGN_BLOCK_CONTROL::notifyOtherFrames()
+{
+    std::string payload = "";
+
+    for( FRAME_T frame : m_framesToNotify )
+        m_frame->Kiway().ExpressMail( frame, MAIL_RELOAD_LIB, payload );
+}
diff --git a/common/tool/design_block_control.h b/common/tool/design_block_control.h
index 5019a76a9b..61339df080 100644
--- a/common/tool/design_block_control.h
+++ b/common/tool/design_block_control.h
@@ -66,6 +66,10 @@ protected:
     virtual DESIGN_BLOCK_PANE* getDesignBlockPane() = 0;
     LIB_TREE_NODE*             getCurrentTreeNode();
 
+    /// Notify other frames that the design block lib table has changed
+    std::vector<FRAME_T> m_framesToNotify;
+    void                 notifyOtherFrames();
+
     EDA_DRAW_FRAME* m_frame = nullptr;
 };
 
diff --git a/eeschema/sch_design_block_utils.cpp b/eeschema/sch_design_block_utils.cpp
index fa6ba7ce8d..5d901ef561 100644
--- a/eeschema/sch_design_block_utils.cpp
+++ b/eeschema/sch_design_block_utils.cpp
@@ -57,14 +57,14 @@ bool checkOverwrite( wxWindow* aFrame, wxString& libname, wxString& newName )
 }
 
 
-void SCH_EDIT_FRAME::SaveSheetAsDesignBlock( const wxString& aLibraryName,
+bool SCH_EDIT_FRAME::SaveSheetAsDesignBlock( const wxString& aLibraryName,
                                              SCH_SHEET_PATH& aSheetPath )
 {
     // Make sure the user has selected a library to save into
     if( m_designBlocksPane->GetSelectedLibId().GetLibNickname().empty() )
     {
         DisplayErrorMessage( this, _( "Please select a library to save the design block to." ) );
-        return;
+        return false;
     }
 
     // Just block all attempts to create design blocks with nested sheets at this point
@@ -74,7 +74,7 @@ void SCH_EDIT_FRAME::SaveSheetAsDesignBlock( const wxString& aLibraryName,
     if( !sheets.empty() )
     {
         DisplayErrorMessage( this, _( "Design blocks with nested sheets are not supported." ) );
-        return;
+        return false;
     }
 
     DESIGN_BLOCK blk;
@@ -99,7 +99,16 @@ void SCH_EDIT_FRAME::SaveSheetAsDesignBlock( const wxString& aLibraryName,
     DIALOG_DESIGN_BLOCK_PROPERTIES dlg( this, &blk );
 
     if( dlg.ShowModal() != wxID_OK )
-        return;
+        return false;
+
+    wxString libName = blk.GetLibId().GetLibNickname();
+    wxString newName = blk.GetLibId().GetLibItemName();
+
+    if( Prj().DesignBlockLibs()->DesignBlockExists( libName, newName )
+        && !checkOverwrite( this, libName, newName ) )
+    {
+        return false;
+    }
 
     // Save a temporary copy of the schematic file, as the plugin is just going to move it
     wxString tempFile = wxFileName::CreateTempFileName( "design_block" );
@@ -107,21 +116,16 @@ void SCH_EDIT_FRAME::SaveSheetAsDesignBlock( const wxString& aLibraryName,
     {
         DisplayErrorMessage( this, _( "Error saving temporary schematic file to create design block." ) );
         wxRemoveFile( tempFile );
-        return;
+        return false;
     }
 
     blk.SetSchematicFile( tempFile );
 
+    bool success = false;
     try
     {
-        wxString libName = blk.GetLibId().GetLibNickname();
-        wxString newName = blk.GetLibId().GetLibItemName();
-
-        if( Prj().DesignBlockLibs()->DesignBlockExists( libName, newName ) )
-            if( !checkOverwrite( this, libName, newName ) )
-                return;
-
-        Prj().DesignBlockLibs()->DesignBlockSave( aLibraryName, &blk );
+        success = Prj().DesignBlockLibs()->DesignBlockSave( aLibraryName, &blk )
+                  == DESIGN_BLOCK_LIB_TABLE::SAVE_OK;
     }
     catch( const IO_ERROR& ioe )
     {
@@ -133,25 +137,27 @@ void SCH_EDIT_FRAME::SaveSheetAsDesignBlock( const wxString& aLibraryName,
 
     m_designBlocksPane->RefreshLibs();
     m_designBlocksPane->SelectLibId( blk.GetLibId() );
+
+    return success;
 }
 
 
-void SCH_EDIT_FRAME::SaveSelectionAsDesignBlock( const wxString& aLibraryName )
+bool SCH_EDIT_FRAME::SaveSelectionAsDesignBlock( const wxString& aLibraryName )
 {
-    // Make sure the user has selected a library to save into
-    if( m_designBlocksPane->GetSelectedLibId().GetLibNickname().empty() )
-    {
-        DisplayErrorMessage( this, _( "Please select a library to save the design block to." ) );
-        return;
-    }
-
     // Get all selected items
     EE_SELECTION selection = m_toolManager->GetTool<EE_SELECTION_TOOL>()->GetSelection();
 
     if( selection.Empty() )
     {
         DisplayErrorMessage( this, _( "Please select some items to save as a design block." ) );
-        return;
+        return false;
+    }
+
+    // Make sure the user has selected a library to save into
+    if( m_designBlocksPane->GetSelectedLibId().GetLibNickname().empty() )
+    {
+        DisplayErrorMessage( this, _( "Please select a library to save the design block to." ) );
+        return false;
     }
 
     // Just block all attempts to create design blocks with nested sheets at this point
@@ -168,7 +174,7 @@ void SCH_EDIT_FRAME::SaveSelectionAsDesignBlock( const wxString& aLibraryName )
         else
             DisplayErrorMessage( this, _( "Design blocks with nested sheets are not supported." ) );
 
-        return;
+        return false;
     }
 
     DESIGN_BLOCK blk;
@@ -179,7 +185,16 @@ void SCH_EDIT_FRAME::SaveSelectionAsDesignBlock( const wxString& aLibraryName )
     DIALOG_DESIGN_BLOCK_PROPERTIES dlg( this, &blk );
 
     if( dlg.ShowModal() != wxID_OK )
-        return;
+        return false;
+
+    wxString libName = blk.GetLibId().GetLibNickname();
+    wxString newName = blk.GetLibId().GetLibItemName();
+
+    if( Prj().DesignBlockLibs()->DesignBlockExists( libName, newName )
+        && !checkOverwrite( this, libName, newName ) )
+    {
+        return false;
+    }
 
     // Create a temporary screen
     SCH_SCREEN* tempScreen = new SCH_SCREEN( m_schematic );
@@ -201,21 +216,16 @@ void SCH_EDIT_FRAME::SaveSelectionAsDesignBlock( const wxString& aLibraryName )
     {
         DisplayErrorMessage( this, _( "Error saving temporary schematic file to create design block." ) );
         wxRemoveFile( tempFile );
-        return;
+        return false;
     }
 
     blk.SetSchematicFile( tempFile );
 
+    bool success = false;
     try
     {
-        wxString libName = blk.GetLibId().GetLibNickname();
-        wxString newName = blk.GetLibId().GetLibItemName();
-
-        if( Prj().DesignBlockLibs()->DesignBlockExists( libName, newName ) )
-            if( !checkOverwrite( this, libName, newName ) )
-                return;
-
-        Prj().DesignBlockLibs()->DesignBlockSave( aLibraryName, &blk );
+        success = Prj().DesignBlockLibs()->DesignBlockSave( aLibraryName, &blk )
+                  == DESIGN_BLOCK_LIB_TABLE::SAVE_OK;
     }
     catch( const IO_ERROR& ioe )
     {
@@ -229,4 +239,6 @@ void SCH_EDIT_FRAME::SaveSelectionAsDesignBlock( const wxString& aLibraryName )
 
     m_designBlocksPane->RefreshLibs();
     m_designBlocksPane->SelectLibId( blk.GetLibId() );
+
+    return success;
 }
diff --git a/eeschema/sch_edit_frame.h b/eeschema/sch_edit_frame.h
index be0cde2b95..a03d43baf7 100644
--- a/eeschema/sch_edit_frame.h
+++ b/eeschema/sch_edit_frame.h
@@ -744,9 +744,9 @@ public:
      */
     bool CreateArchiveLibrary( const wxString& aFileName );
 
-    void SaveSheetAsDesignBlock( const wxString& aLibraryName, SCH_SHEET_PATH& aSheetPath );
+    bool SaveSheetAsDesignBlock( const wxString& aLibraryName, SCH_SHEET_PATH& aSheetPath );
 
-    void SaveSelectionAsDesignBlock( const wxString& aLibraryName );
+    bool SaveSelectionAsDesignBlock( const wxString& aLibraryName );
 
     SCH_DESIGN_BLOCK_PANE* GetDesignBlockPane() const { return m_designBlocksPane; }
 
diff --git a/eeschema/tools/sch_design_block_control.cpp b/eeschema/tools/sch_design_block_control.cpp
index 8b3ddd1638..c84e1c7202 100644
--- a/eeschema/tools/sch_design_block_control.cpp
+++ b/eeschema/tools/sch_design_block_control.cpp
@@ -39,6 +39,7 @@ bool SCH_DESIGN_BLOCK_CONTROL::Init()
 {
     m_editFrame     = getEditFrame<SCH_EDIT_FRAME>();
     m_frame         = m_editFrame;
+    m_framesToNotify = { FRAME_PCB_EDITOR };
 
     auto isInLibrary =
             [this](const SELECTION& aSel )
@@ -75,8 +76,11 @@ int SCH_DESIGN_BLOCK_CONTROL::SaveSheetAsDesignBlock( const TOOL_EVENT& aEvent )
     if( !current )
         return -1;
 
-    m_editFrame->SaveSheetAsDesignBlock( current->m_LibId.GetLibNickname(),
-                                         m_editFrame->GetCurrentSheet() );
+    if( !m_editFrame->SaveSheetAsDesignBlock( current->m_LibId.GetLibNickname(),
+                                              m_editFrame->GetCurrentSheet() ) )
+        return -1;
+
+    notifyOtherFrames();
 
     return 0;
 }
@@ -89,7 +93,10 @@ int SCH_DESIGN_BLOCK_CONTROL::SaveSelectionAsDesignBlock( const TOOL_EVENT& aEve
     if( !current )
         return -1;
 
-    m_editFrame->SaveSelectionAsDesignBlock( current->m_LibId.GetLibNickname() );
+    if( !m_editFrame->SaveSelectionAsDesignBlock( current->m_LibId.GetLibNickname() ) )
+        return -1;
+
+    notifyOtherFrames();
 
     return 0;
 }
diff --git a/pcbnew/cross-probing.cpp b/pcbnew/cross-probing.cpp
index f31f1b881c..b94ea40146 100644
--- a/pcbnew/cross-probing.cpp
+++ b/pcbnew/cross-probing.cpp
@@ -54,6 +54,7 @@
 #include <tools/pcb_actions.h>
 #include <tools/pcb_selection_tool.h>
 #include <netlist_reader/netlist_reader.h>
+#include <widgets/pcb_design_block_pane.h>
 #include <wx/log.h>
 
 /* Execute a remote command sent via a socket on port KICAD_PCB_PORT_SERVICE_NUMBER
@@ -718,6 +719,10 @@ void PCB_EDIT_FRAME::KiwayMailIn( KIWAY_EXPRESS& mail )
         GetToolManager()->RunAction( ACTIONS::pluginsReload );
         break;
 
+    case MAIL_RELOAD_LIB:
+        m_designBlocksPane->RefreshLibs();
+        break;
+
     // many many others.
     default:
         ;
diff --git a/pcbnew/pcb_design_block_utils.cpp b/pcbnew/pcb_design_block_utils.cpp
index 8e5e92867c..740ad62534 100644
--- a/pcbnew/pcb_design_block_utils.cpp
+++ b/pcbnew/pcb_design_block_utils.cpp
@@ -104,13 +104,13 @@ bool PCB_EDIT_FRAME::saveBoardAsFile( BOARD* aBoard, const wxString& aFileName,
 }
 
 
-void PCB_EDIT_FRAME::SaveBoardAsDesignBlock( const wxString& aLibraryName )
+bool PCB_EDIT_FRAME::SaveBoardAsDesignBlock( const wxString& aLibraryName )
 {
     // Make sure the user has selected a library to save into
     if( m_designBlocksPane->GetSelectedLibId().GetLibNickname().empty() )
     {
         DisplayErrorMessage( this, _( "Please select a library to save the design block to." ) );
-        return;
+        return false;
     }
 
     DESIGN_BLOCK blk;
@@ -121,7 +121,16 @@ void PCB_EDIT_FRAME::SaveBoardAsDesignBlock( const wxString& aLibraryName )
     DIALOG_DESIGN_BLOCK_PROPERTIES dlg( this, &blk );
 
     if( dlg.ShowModal() != wxID_OK )
-        return;
+        return false;
+
+    wxString libName = blk.GetLibId().GetLibNickname();
+    wxString newName = blk.GetLibId().GetLibItemName();
+
+    if( Prj().DesignBlockLibs()->DesignBlockExists( libName, newName )
+        && !checkOverwrite( this, libName, newName ) )
+    {
+        return false;
+    }
 
     // Save a temporary copy of the schematic file, as the plugin is just going to move it
     wxString tempFile = wxFileName::CreateTempFileName( "design_block" );
@@ -131,21 +140,17 @@ void PCB_EDIT_FRAME::SaveBoardAsDesignBlock( const wxString& aLibraryName )
         DisplayErrorMessage( this,
                              _( "Error saving temporary board file to create design block." ) );
         wxRemoveFile( tempFile );
-        return;
+        return false;
     }
 
     blk.SetBoardFile( tempFile );
 
+    bool success = false;
+
     try
     {
-        wxString libName = blk.GetLibId().GetLibNickname();
-        wxString newName = blk.GetLibId().GetLibItemName();
-
-        if( Prj().DesignBlockLibs()->DesignBlockExists( libName, newName ) )
-            if( !checkOverwrite( this, libName, newName ) )
-                return;
-
-        Prj().DesignBlockLibs()->DesignBlockSave( aLibraryName, &blk );
+        success = Prj().DesignBlockLibs()->DesignBlockSave( aLibraryName, &blk )
+                  == DESIGN_BLOCK_LIB_TABLE::SAVE_OK;
     }
     catch( const IO_ERROR& ioe )
     {
@@ -157,16 +162,18 @@ void PCB_EDIT_FRAME::SaveBoardAsDesignBlock( const wxString& aLibraryName )
 
     m_designBlocksPane->RefreshLibs();
     m_designBlocksPane->SelectLibId( blk.GetLibId() );
+
+    return success;
 }
 
 
-void PCB_EDIT_FRAME::SaveSelectionAsDesignBlock( const wxString& aLibraryName )
+bool PCB_EDIT_FRAME::SaveSelectionAsDesignBlock( const wxString& aLibraryName )
 {
     // Make sure the user has selected a library to save into
     if( m_designBlocksPane->GetSelectedLibId().GetLibNickname().empty() )
     {
         DisplayErrorMessage( this, _( "Please select a library to save the design block to." ) );
-        return;
+        return false;
     }
 
     // Get all selected items
@@ -175,7 +182,7 @@ void PCB_EDIT_FRAME::SaveSelectionAsDesignBlock( const wxString& aLibraryName )
     if( selection.Empty() )
     {
         DisplayErrorMessage( this, _( "Please select some items to save as a design block." ) );
-        return;
+        return false;
     }
 
     DESIGN_BLOCK blk;
@@ -186,7 +193,16 @@ void PCB_EDIT_FRAME::SaveSelectionAsDesignBlock( const wxString& aLibraryName )
     DIALOG_DESIGN_BLOCK_PROPERTIES dlg( this, &blk );
 
     if( dlg.ShowModal() != wxID_OK )
-        return;
+        return false;
+
+    wxString libName = blk.GetLibId().GetLibNickname();
+    wxString newName = blk.GetLibId().GetLibItemName();
+
+    if( Prj().DesignBlockLibs()->DesignBlockExists( libName, newName )
+        && !checkOverwrite( this, libName, newName ) )
+    {
+        return false;
+    }
 
     // Create a temporary board
     BOARD* tempBoard = new BOARD();
@@ -220,21 +236,17 @@ void PCB_EDIT_FRAME::SaveSelectionAsDesignBlock( const wxString& aLibraryName )
         DisplayErrorMessage( this,
                              _( "Error saving temporary board file to create design block." ) );
         wxRemoveFile( tempFile );
-        return;
+        return false;
     }
 
     blk.SetBoardFile( tempFile );
 
+    bool success = false;
+
     try
     {
-        wxString libName = blk.GetLibId().GetLibNickname();
-        wxString newName = blk.GetLibId().GetLibItemName();
-
-        if( Prj().DesignBlockLibs()->DesignBlockExists( libName, newName ) )
-            if( !checkOverwrite( this, libName, newName ) )
-                return;
-
-        Prj().DesignBlockLibs()->DesignBlockSave( aLibraryName, &blk );
+        success = Prj().DesignBlockLibs()->DesignBlockSave( aLibraryName, &blk )
+                  == DESIGN_BLOCK_LIB_TABLE::SAVE_OK;
     }
     catch( const IO_ERROR& ioe )
     {
@@ -246,4 +258,6 @@ void PCB_EDIT_FRAME::SaveSelectionAsDesignBlock( const wxString& aLibraryName )
 
     m_designBlocksPane->RefreshLibs();
     m_designBlocksPane->SelectLibId( blk.GetLibId() );
+
+    return success;
 }
diff --git a/pcbnew/pcb_edit_frame.h b/pcbnew/pcb_edit_frame.h
index 87f434d6e0..5b4c708b81 100644
--- a/pcbnew/pcb_edit_frame.h
+++ b/pcbnew/pcb_edit_frame.h
@@ -464,9 +464,9 @@ public:
      */
     void RecreateCmpFileFromBoard( wxCommandEvent& aEvent );
 
-    void SaveBoardAsDesignBlock( const wxString& aLibraryName );
+    bool SaveBoardAsDesignBlock( const wxString& aLibraryName );
 
-    void SaveSelectionAsDesignBlock( const wxString& aLibraryName );
+    bool SaveSelectionAsDesignBlock( const wxString& aLibraryName );
 
     PCB_DESIGN_BLOCK_PANE* GetDesignBlockPane() const { return m_designBlocksPane; }
 
diff --git a/pcbnew/tools/pcb_design_block_control.cpp b/pcbnew/tools/pcb_design_block_control.cpp
index aa75507314..222204e8a5 100644
--- a/pcbnew/tools/pcb_design_block_control.cpp
+++ b/pcbnew/tools/pcb_design_block_control.cpp
@@ -39,6 +39,7 @@ bool PCB_DESIGN_BLOCK_CONTROL::Init()
 {
     m_editFrame     = getEditFrame<PCB_EDIT_FRAME>();
     m_frame         = m_editFrame;
+    m_framesToNotify = { FRAME_SCH };
 
     auto isInLibrary =
             [this](const SELECTION& aSel )
@@ -75,7 +76,10 @@ int PCB_DESIGN_BLOCK_CONTROL::SaveBoardAsDesignBlock( const TOOL_EVENT& aEvent )
     if( !current )
         return -1;
 
-    m_editFrame->SaveBoardAsDesignBlock( current->m_LibId.GetLibNickname() );
+    if( !m_editFrame->SaveBoardAsDesignBlock( current->m_LibId.GetLibNickname() ) )
+        return -1;
+
+    notifyOtherFrames();
 
     return 0;
 }
@@ -88,7 +92,10 @@ int PCB_DESIGN_BLOCK_CONTROL::SaveSelectionAsDesignBlock( const TOOL_EVENT& aEve
     if( !current )
         return -1;
 
-    m_editFrame->SaveSelectionAsDesignBlock( current->m_LibId.GetLibNickname() );
+    if( !m_editFrame->SaveSelectionAsDesignBlock( current->m_LibId.GetLibNickname() ) )
+        return -1;
+
+    notifyOtherFrames();
 
     return 0;
 }