A bit of an update. I was curious to what exactly might be causing this bug, and I don’t believe UE4 is responsible at all.
I started tinkering with Unity a bit just to see if it happens when Unity is open for quite a while. I literally made a simple scene and just let it sit. To make sure it wasn’t just display drivers crashing and thus making it look like my PC was frozen, I played a bunch of music softly in the background and made sure it was a playlist longer than 4 hours. I barely made it into two hours before the music stopped and my PC came to a screeching halt. As far as I can tell, my resource monitor indicated that everything was operating nominally.
I’m thinking it’s definitely something to do with our GPUs, and the fact that we both have Nvidia cards is a bit of a red flag to me.While the latest drivers decreased the frequency of the lock-ups, something is still quite wrong.
Do you, by chance, have the latest Windows 10 updates? I do, and I don’t believe the problems came around for me until after the Fall Creators Update.