Samsung Galaxy J7
Android 8.1.0
Mapillary 3.147
Mapillary freezes randomly, especially when recording for a long (with “long” I mean >= 10min) time; the phone does not seem to overheat though. It freezes, showing what the camera last recorded and Mapillary’s UI does nothing more 
I have to force/close the app and start it again.
I had other inconveniences with previous phone/app in the past too.
Since I really use it only for taking the pictures I will later upload to Mapillary.com, I am considering using another more stable/robust app which does the same (and maybe that only): taking timed geotagged shots.