Hello! I need help. I bought a slightly used K1 to fix up and get running. Every time I do the self check or it tries to level itself, it does some weird movements and eventually tries to home. But when it goes to the side to home, its like it tries to go beyond its limits. It grinds against the back and side for a little. Then it stops and seems to go alright but it keeps grinding against the wall once in a while. I haven’t tried to print anything yet because I want to get this figured out first. I replaced the mainboard, updated firmware, but it still does it. Is it something with the load sensors on the stepper drivers?? Please help. Thanks