The LIB versions before Service Pack releases usually contain mainly bug fixes and it is not likely that any issue should occur while using a LIB version. However, I do recommend to wait for the official SP1 release next week. Of course, that is if your project time frame allows it.
Maybe you could just test your project with the latest LIB, which was released yesterday, 12.09 and see if the issue persists. In case it does, we can react timely, and offer assistance to fix it.
the Telerik team
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