Hi Sebastian,
Thank you for posting your qurey.
Actually, this will definately need a case opened.
https://support.fslogix.com/
the first thing they'll request is the support tool output: https://social.msdn.microsoft.com/Forums/windows/en-US/0935e903-95d6-497a-9d9a-ae6ba5ece937/changing-the-fslogix-logging-output-locationpermissions-to-troubleshoot-fslogix-issues?forum=FSLogix
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