@Adina Mihailescu - Thanks for the question and using MS Q&A platform.
Firstly, I would suggest checking the Purview service health status in the UAEN region. You can check the service health status by visiting the Azure status page (https://status.azure.com/status) and Access Service Health through the Azure portal. If there is any ongoing issue with the Purview service in the UAEN region, it will be listed there.
As I had already checked, there is no ongoing issue with the Purview service in the UAEN region, I would suggest checking the API request and response logs to see if there are any errors or issues with the API calls. You can also try to reproduce the issue and capture the logs to get more information about the error message and share here for furture troubleshooting.
I hope this helps! Let me know if you have any other questions.