ROBO3D R1+ using S3D printing from USB (Print from SD doesn't seem to work, load gCode on SD, select it after clicking 'Print from SD' but nothing happens). I'm using version 4.0.0. I've managed to get one or two things to print completely during this, but I haven't a clue what I did to allow that to happen. Tried restarting computer/printer, loading different files, but most times it just freezes in place saying there's an error and it can't do anything and it switches the heated bed off automatically.
After checking the comm log all I see is that it says "Unknown command: Start" followed by other "unknown commands" like restart. Anyone run into anything like this?