@Amy Chodorowski Thanks for reaching out. I was able to track the request using the portal session ID and I found that the update connection request was failing with the 403 error i.e. unauthorized error. I will suggest you to review the permission to see whether you have the right permission to perform the operation. You can navigate to the Access Control (IAM) on the connection resource --> Role Assignments and verify what permission and scope you have for your account. You can refer to Azure build in roles document for more details on different roles and permission.
Let me know if you need any help in verifying the details.