Same issue here, I think Canary might have changed their API.
Slightly off-topic but you might be interested if you use custom-ui:
I was on 0.84.6 and following a restart the states UI stopped working. I thought there was an issue with some components but the debug log didn’t help. Eventually I decided to go for an update (I was postponing as I didn’t have time to handle the breaking changes), to see if a component update would fix the issue.
Again, it didn’t work and after almost a day of debugging I found out that custom-ui breaks (and prevents the UI from loading) if you customise unavailable entities. So when the Canary sensors disappeared, custom-ui failed at the first reboot.