100% Kept getting crashes and thought it was a fault with climbable surfaces as it always crashed there (duergar outpost) , but have tested that once I had equipped two hand-crossbows to the thief, it all broke. Gone back in Saves to when I just had the one hand-crossbow equipped and no issue. A simple test: can you unequip without a crash. Have a lot to go back through now that I have reverted to an old save, but the restarts were starting to get a little irritating.
On one of the saves I had only one hand crossbows equipped. I was able to 'Equip' another bow and that got the hand-bow out of use without crashing the game (click and drag crashes).
A relief that this appears to be a temp solution.
