Ok, this is the workaround I used:

 

I just went  to the file ...CuteSoft_Client/CuteEditor/Scripts/IE_Implementation/CuteEditorImplementation.js

 

and I modified the function Window_PasteHTMLAndCollapseToEnd. I just added a try/catch statement around the problematic code.

 

function Window_PasteHTMLAndCollapseToEnd(Ox1a5,Ox92)

{

  var range=Ox1a5[OxO5799[0x1]][OxO5799[0x8]].createRange();

  try{ range.pasteHTML(Ox92) ;

         range.collapse(false) ;

         range.select();}

   catch(ex){}

}

However this just hides the problem (which I don't really know what is) and I had to modify cutesoft internal code. If I want to upgrade later and you have not solved this issue I will have to modify it again.

Please cutesoft, take a look at this bug for your new version.

 

Regards.