Fallout London Crash Prevention.

[Sir Punchwood]

I am on playthrough number 3 now, the first two got soft locked due to crashes.

The biggest tip to avoid this is to do your best to save and close the game while your character is in any exterior cells when possible. My first and second playthrough I had saved and quit the game when I was inside the swan and miter pub, and after like 30 attempts to leave the pub on each playthrough, only a few times did I actually make it to the outside, where it crashes within 10 seconds. Usually though, it crashes on the loading screen. With all the tips and tricks applied, with the Buffout4 mod installed.
Both playthroughs this has happened on, I've done a few missions for the vagabonds, first time I had done the Yvette mission then got trapped when I came back, and the second attempt I had only done some of the small side missions for the characters in the pub.
Only had a couple of crashes aside from this situation.

I'm just going to avoid the vagabonds in this new playthrough and head straight to the thames town thing.

[m662]

That is not normal behavior and should not happen with the mod to that extent. Yes, there is instability, but leaving cells does not cause crashes that often. I hate to bring it to you, but something in your setup is causing it. I have been entering that pub several times a minute because I had to do some quest debugging (Memories of Syd), and it never crashed.

Most of my crashes after initial tuning are due to me alt-tabbing while loading a new cell or me running an A.I. command on either my CNN or ANN outside the game causing GPU spikes which trigger a memory shortage crash.