Hello, @Dave Gill !
I reached out to the product group and we'd like to investigate this further as it appears to be an issue on our end but we aren't seeing anything that would cause an outage for UK South. I'll follow up with you directly for more details.
Attempting to add a tag to an Azure Container Instance results in an error:
"Encountered an internal server error. The tracking activity id is 'xxx', correlation id is 'xxx'.\".
This may happen using multiple approaches (Azure Portal and PowerShell) and is limited to a specific region.
It appears that this may have been a brief issue on our end that has since been resolved. If you run into this again, please let us know.