Hi @Jonathan Parker ,
Thanks for sharing the required details.
I reached out to PG team and they took a look at the telemetry of your workspace. However, they need to perform further deep investigation to resolve the issue. Their suggestion is to report this issue from the portal, submitting a support request.
Here is the article which would help you to know how to raise a support ticket with Microsoft Azure : Create an Azure support request
Thankyou for your collaboration.