Thank you for contacting Telerik Support.
In order to investigate the experienced problematic behavior further, I would like to ask you to provide us with the implementation of the RadDropDownTree that you are currently using, so we could try to locally replicate the problem.
In addition, could you confirm that 2016.1 225 is the version of our product that you are currently using, as specified in the ticket info?
I am looking forward to your reply.
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