Whilst trying to reproduce another issue, I was attempting to reinstall the two snaps I’d previously seen cause the issue:
$ snap install anbox canonical-livepatch error: store.RevisionNotAvailable with 2 snaps
This messaging isn’t all that great. I’m pretty sure it’s because anbox doesn’t have a revision in the stable channel yet, but the error message obviously does nothing to guide me towards that. This could definitely be better.