Hello,
There is a service issue EX637339 related to the issue that you are facing.
It was created in July and being work upon. That can cause service degradation.
It was created in July and recent update was done on 29 Nov 2023
It is a known issue and Microsoft is backend team is working on it.
your patience is highly appreciated. We regret the inconvenience caused. The service incidence is still open.
If you are satisfied with my answer, then please click on Accept Answer and upvote it