It can be a lot of things in fact… Maybe try to disable advanced pricacy on this app, then clear cache and data, then try again.
Possibly a future update may solve the problem.
Hi ! I have the exact same issue with my Fairphone 4, I do not know if it is locked though. It also did work once for me after some fails before crashing again…
I’d advise reporting all this to Nintendo since they seem to take it seriously, but if it happens to be a microG issue, we might be stuck :/. Although since it doesn’t crash for @stanwood, there might be some light out of the tunnel.
Oh, forgot to add another detail : After it worked once, I downloaded some songs, and, when it began crashing again, I could still access it offline ! But, as soon as I put the internet back it’d crash again. (Unfortunately, since I tried reinstalling the app, I’ve lost everything T-T). This isn’t related to a specific connection, it crashes with different WiFis, on the 5G network, with and without a VPN, with or without Advanced Privacy, etc…
On the topic of the actual bug, reporting it to Nintendo seems to be a good idea, yes.
Also while turning off the Advanced Privacy did not help against the crashes, it might help with fixing the issue, since the only(?) tracker is about bug/crash stuff, so Nintendo can see all the crashes.