I play on the most recent version for Minecraft bedrock PS4. I have a guardian farm where pistons repeatedly push tridents into guardians and kill them, so I get the drops and XP. However, usually after around 5 minutes of running the farm, the world crashes. Sometimes the crash happens much sooner than that, and it is infuriating. I know there is a rare bug in the game where killing a guardian crashes the game, and it's just infuriating that it still hasn't been fixed. Also note that this happens when killing regular guardians, not elder guardians, just to avoid any confusion.