Thank you for reaching out to Microsoft Q&A forum!
As per the information provided, it was working fine until yesterday. Here are a few things you can recheck to resolve the issue:
- Might this issue would be intermittent, it could be due to a temporary network or server issue. In this case, you can try again later to see if the issue has been resolved.
- Try Clear browser cache and cookies and also try using a different browser.
If you still cannot resolve the issue, please provide your API version and specify the Azure Service you are using.
Hope this helps. Do let us know if you any further queries.
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