@Andrej Struhacka , This looks like an internal product bug. This requires a deeper investigation, so if you have a support plan, I request you file a support ticket, else please do let us know, we will try and help you get a one-time free technical support. In this case, could you send an email to AzCommunity[at]Microsoft[dot]com referencing this thread and your subscription id.
Thank you for your cooperation on this matter and look forward to your reply.
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