Thank you for troubleshooting the Canvas Flip integration on mobile. For the California Community Colleges, this is a major equity issue. Over 75% of students at my institution access Canvas from the mobile app. And we simply can't leave out students who do not have access to laptops or desktops with webcams and microphones.
I tried the workaround you mentioned above (download Flip first, do not open, then access through Canvas) and was still unable to access the Flip assignment.
I have several outstanding tickets with Flip about the Canvas integration (issues with mobile users, unable to add co-leads, and mixtape embed) and have not seen any timelines given on fixes. I do see they are now listing "Canvas integration with Flip" as something they are "aware and actively working to fix." It would be nice to have a timeline so we can inform our faculty who rely on Flip.
We are in the middle of implementing a Humanizing Online STEM initiative that is training faculty on online teaching equity practices that leverage Flip. The main reasons Flip was chosen was because it integrates deeply with Canvas, works well on mobile, and has captions. I hope they can fix the Canvas Integration quickly!!