A Microsoft file hosting and synchronization service.
Thank you for your effort and for sharing your workaround.
At the moment, there are many reports from other users experiencing the same issue after installing update KB5094126.
Given the nature of the problem, the most effective next step is using your admin credentials to submit a report through the Microsoft 365 Admin Center .
Please navigate to Microsoft 365 Admin Center > Health > Service health > Report an issue.
This route ensures that a Microsoft support engineer can investigate backend configurations, run advanced diagnostic tools, and, if necessary, escalate the case to specialized teams with access to internal systems and logs. These backend resources are essential for resolving issues that go beyond what’s visible in the user interface.
As community moderators, we’re here to guide you, but due to privacy and security limitations, we don’t have access to the backend tools required for a full resolution. For this reason, contacting Microsoft Support via the Admin Center is the most secure and efficient way forward.
I hope this helps you resolve the issue quickly. I’m glad to assist and truly hope the information provided has been useful. Please feel free to reach out anytime if you need further assistance.
If you find my post helpful, kindly consider marking it as the accepted answer. Doing so can assist others in the community who may have similar questions in finding solutions more quickly.
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