I installed the Canvas Parent app (Android) a few days ago to link to my student's new Canvas account, and noticed right away that I wasn’t able to open the calendar in the app due to an error ("There was an error loading your student's calendar").  I tried clearing the app’s cache, and also tried uninstalling/reinstalling the app. I ended up finding that if I disabled one specific class calendar I could then open the student's calendar.

There doesn’t appear to be any issue with the calendar on the web, just the app.

The school contacted Canvas support, but Canvas instructed the school to have me ask the community for the answer.

Any help would be appreciated!