That's a really interesting behavior, can you, please, try creating a new empty project and let me know if the issue reproduces there as well? Concerning your current project, is it possible to provide me with temporary backend login credentials so that I can inspect what's going on? If not possible, can you try recording a short video showing how this issue reproduces (you might use Jing
for example). I'd love to help you resolve this issue.
P.S. You might not be able to attach the video to this forum thread due to the default file upload policy we have, so you can either open a support ticket for this, or upload it on a shared hosting and provide me with a link where I can download it. Thanks in advance.
the Telerik team
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