To let the game crash on ps5 a 100% sure there are 2 ways to reproduce it:
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(Easy way) go to architect mode and move this fountain (see video)
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(Hard way) When you login as Player2 (ps5) and after login lay down your controller without moving (so you stay next to your bed without touching controller and move) it 100% sure crashes after a while, like after 5min.
(Normal way) Happens sometimes when gathering truffels from pigs when they lay outside, pigs are in the middle barn. Maybe try reproducing it that way, it happens 1 out of 10.
Save files in attachment.