Hello @md-infogr8
Thanks for reporting this issue, product team just release a hotfix for this issue. For all new projects, you should see no issue. If it is possible, you can create a new project to have a try.
For existing projects which are under this error, please first check on your top right to know which service you are using for your AI studio, then go to Azure Portal, search the service, and click on the Access Control button on the left panel, add the Azure AI Administrator role as below -
Please wait for at lease 15 mins.
I hope this helps! Let me know if you are still blocked by this issue, happy to enable you a free ticket so that support team can check with you individually to protect your privacy.
Regards,
Yutong
-Please kindly accept the answer if you feel helpful to support the community, thanks a lot.