I had checked the level just before the print and it was good. After another print had failed just like this and immediately checked the level and the bed was was off all 4 corners and center where at least a full turn to close to the nozzle. I updated the springs a while back and the wheels are pretty stiff so I?m now sure how they are just turning on there own or if this is the problem as after the print shift it still prints smooth and straight. Just something I noticed