Thank you for contacting us.
We are not aware of such issue in the latest and the mentioned 2012.2.912.35
versions of RadWindow. The described scenario runs as expected with our current latest version and the older version on both Windows 8 and Windows 7 OS environments.
I attached the sample project which was used in our tests to my response. Could you try to reproduce the issue in that project and send it back to us in a support thread. This would help us observe the issue on our side and see what could be the cause of it.
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