Hi edison9541,
It works fine for me. Can you upgrade to the latest version and try again?
Below is my test code.
<CE:Editor ID="editor1" runat="server" MaxHTMLLength="10" CustomCulture="es-es">
</CE:Editor>
If still get the same issue with the latest version. Please set up ftp access for me, I will check it and get back to you as soon as possible.
Regards,
ken