I'm developing a bit of a love-hate relationship with my BigBox. A pattern is emerging where it will work quite nicely for a while and then suddenly for no apparent reason will start auto homing way above the bed. Last night I did a few successful prints, shut it down and went to bed, and this morning my first attempt to print hit the same problem. The auto home stops with the bed about 2mm from the nozzles, the LED on the IR sensor is on. I definitely did store memory (multiple times!) after doing the bed levelling. Any ideas what is causing this because it's driving me mad? The mesh levelling isn't too painful to do thankfully but at the moment I feel like I'm spending more time levelling the bed than I am printing.