I had a problem with my Kywoo Tycoon where under some circumstances the printer would just dig right into the build plate when starting a print. Like the reference for the z-offset was completely out of whack. It had to do with the order in which I did bed leveling, homing, etc. I couldn’t pin down the exact steps but it would usually happen on repeated prints. For me the issue was entirely fixed with one of the later firmware updates and I have never had the problem since.
Before I updated the firmware to 2.1.3 which must have been well over a year ago.