No, those crashes been around since the vanilla install, though now I have a couple mods added. Didn't really change the stability issue, it's mostly playable, except when it just decides to freeze up. Usually happens when I press a button on the loading screen while it hasn't finished loading. The client crashes, the server remains and starts gobbling up my RAM.
I did find the reason for the client RAM increase - a blueprint under %appdata%/Avorion/ships/workshop (my fault) which I've removed and that fixed it.
Still, seems like a lack of proper data validation/sanitation, since no corrupted data should be capable of filling the RAM like that, at some point, it should just default to skipping the file completely (assuming it's an infinite loop, maybe at 1 million cycles (blocks), discard the file and collect the garbage?).
But still, couldn't manage to find the reason of the server RAM issues or crashes on the loading screen.
My setup is:
Windows 10 Fall Creator's Update
CPU: Core i7 7700K
GPU: Nvidia GTX 1080 Ti
RAM: 32GB
So it definitely isn't a performance problem. Maybe a compatibility issue with Win10 FCU?
I think it's probably because the game engine blocks the UI thread while loading, which makes Windows think the window froze, which in turn actually freezes the game.