Using a K2 Plus..I was mid print and my filament ran out. I reloaded the new filament but got the error telling me my nozzle was not up to heat. After several tries at resuming and getting the same error, I tried to manually bring the heat up in the nozzle. I got an “unknown error” and had to ditch the whole print. I have done this once before with no issue. What did I do wrong? Thanks in advance
Robert