Most of the dungeon runs i try to play crash at some point before i finish the game (only in the last few weeks). I've tried firefox and chrome and they are both the same. In these instances it is Unity that crashes. I'm not sure after which update this crashing started though, but i guess the end of January one.
Recently i got the crash message 'oh no, shit's crashed' when in the Hex Ruins dungeon. It occurred on my final hit before completing the dungeon.
Also, if i put the game into full screen from the start home screen, all the the words go blurry (unreadable). However, the buttons still work as usual. If i play a dungeon, then the words are all fixed when i get out of it and return to the home screen.
It is really the unity crashes that is making DD become quite unplayable at the moment for me. I rarely manage to finish a dungeon any more
Edit: Feel free to move this to the Support section where i meant to put this :p