Yesterday morning Hearthstone on mobile initiated a download, the 2nd in recent days. Following this my phone started crashing in spectacular fashion (glitchy tweaking screen sound getting stuck etc.) and eventually getting stuck in a restarting loop. Even after uninstalling this behavior continued until I eventually got it to stay on long enough to do a factory reset.
After this it behaved normally the rest of the day and this morning. I tried reinstalling hearthstone a few minutes ago. It got stuck a few times during install but eventually made it through. Within minutes after loading it up and beginning a game in Mercenaries the problem happened again. I am going to have to do another factory reset as the phone is unusable in this state.
Phone is a Samsung Galaxy A32, system was fully up to date, Hearthstone (and everything else) ran without an issue prior to the latest download.