Hello, I wanned to share this situation just in case it could help :

I've had that problem : on pixel 4a, android 12 & 13 & 13 update of september, french :
When I hit the mixer button, the app would crash immediately.

I tried with all those operations at once :
- clear settings & data inside the app,
- then at the "apps" level in android,
- then uninstall & reinstall,
...but it didn't solve the pb.
I had an automatic restore of my tracks, so I guess the settings were also restored.

The (simple) operation that worked for me was : "reset all settings" inside the app (not shure how it's called in english), et voila !

My two cents.