@Janiek Bartelds Thanks for posting in our Q&A.
This community use tags to categorize threads. Based on my research, this problem seems has little to do with windows 365 and maybe Microsoft 365 related. It is suggested to contact Microsoft 365 for business support to get more help.
https://zcusa.951200.xyz/en-us/microsoft-365/admin/support-contact-info?view=o365-worldwide
Thanks for your understanding.
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