@p8blr Noticing that the printer is running the first G1 BEFORE the M291 as if it's not blocking. If the printer isn't homed, it complains that the axes aren't homed. However, this only seems to be the case with Upload & Start, if I run the print from the jobs queue, I do not get these errors. Interesting that it's also skipping the M116
Edit: I take that back, just got the same error as before running from the job queue.