Thank you for contacting me again.
In fact, it is quite hard for us to track down the issue without reproducing it in our side. Especially, in such cases, which show somewhat random pattern. Issues of the described kind are not supposed to happen randomly, if there is an issue, it should occur on all machines.
I am not sure that I understood if you have managed to isolate the issue in a separate project. However, ensure you are using the same project, with same references and settings on your different PCs. If still experience described issue, please open a new support ticket send us your sample. We will try to reproduce and investigate the case further.
the Telerik team
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