Store upload issue?

It looks like there was a store upload issue some ~2h ago. Our automatic core snap building failed with the following message:

Store upload failed: Service unavailable. Please try again later. (['OOPS-c99f7b351c8f0905f108c04c3b451af7']) 

Could someone please have a look? Also please let me know if I can simply press “retry” or if you need anything there before I can press “retry”.

We fixed the store upload issue about 20 minutes after that build finished, so retrying the upload should work fine. Sorry for the inconvenience.

What was the issue? Do we have a report for it yet?

The incident report is at (Canonical-only, sorry!)