Diablo 1 HD Hellfire Mod | Awake

I've had this happen a few times, but it's very hard to replicate to get it on video, but if you're hit in the last few frames when you enter a portal back to town, you'll get an error and the game will crash.

Hes not updating anymore so doesn't really matter.

I believe that occurs only when you're taking lethal damage while entering portal, so most of time you should be fine.