Index: components/lazreport/source/lr_desgn.pas
===================================================================
--- components/lazreport/source/lr_desgn.pas	(revisión: 39445)
+++ components/lazreport/source/lr_desgn.pas	(copia de trabajo)
@@ -1840,8 +1840,8 @@
   Moved := True;
   w := 2;
 
-  {$ifdef LCLQt}if Down then Invalidate;{$endif}
-  {$ifdef LCLCarbon}if Down then Invalidate;{$endif}
+  //{$ifdef LCLQt}if Down then Invalidate;{$endif}
+  //{$ifdef LCLCarbon}if Down then Invalidate;{$endif}
 
   if FirstChange and Down and not RFlag then
   begin
@@ -2342,6 +2342,8 @@
     DeleteObject(hr1);
     Draw(10000, hr);
   end;
+  {$IFDEF LCLQt}Invalidate;{$endif}
+  {$IFDEF LCLCarbon}Invalidate;{$endif}
 end;
 
 procedure TfrDesignerPage.CMMouseLeave(var Message: TLMessage);