I am still getting random display driver crashes from time to time in this game despite Nvidia claiming to have fixed it in the latest driver and I'm not the only one. It never crashed before the last couple of drivers, maybe you are suffering from the same problem. I have reported it to Nvidia so they know their latest driver did not fix the issue for at least some of us.Thought I had solved my ram instability issues but had a crash in this game on the map.
The game was still up and visible but I couldn't click anything all I had was a windows mouse curser (yes whilst inside the game)
Thing is I finished off Watch Dogs Legion which was given me crashes almost every other sessions and things have been stable for a few weeks now.
So I am wondering if it was the game that crashed rather than my ram being unstable.
A quick google does show lots of people complaining that even patch 1.1.1 is still not stable.
But when you are running overclocks it's almost impossible to know if it's your overclock or the game.