I am afraid that I cannot reproduce the reported behavior based on the provided information. This is why I prepared a small project demonstrating the described scenario and attached it in my reply. Can you please take a look at it and let me know if I am missing something. If so, I would ask you to modify the project so that it reproduces the issue and send it over so I can investigate it on my side.
You can also take a look at our RadGridView
Thank you for any help you can provide.
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