Hello Jean-Christophe,
Thank you for the screencast and the problem is clearly observable. Unfortunately, it is hard to continue our investigation when I cannot replicate the issue locally (depicted the screencast in my last reply). Is it reproducible at your end using the attached test page (your html page modified to use CDN scripts)? I noticed that you are using ASP.NET MVC project. Is it different than the provided html page?
Regards,
Georgi Krustev
Telerik
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