Hi Stefan!!! I didn't realize you're already updated to the latest, I thought you were still on 8049...
I don't see this problem either, in any of my servers (I have 6... with thousands of clients)...
So it seems like it's a specific problem with your installation, not a general bug in the software.
Unfortunately, if it's a problem that ONLY happens to you and is not replicated by ANYONE else, then you must open a ticket so they can help you solve it, and this implies that you pay for support.
If you don't pay for support, then you can't expect problems that only happen to you to be solved, there's no point in insisting.