restarting print after filament failure
high all i am new to printing but have my mk2s up and running and through all the canned prints very well. i am now printing my first large piece which is the second that i sliced and everything and i left for lunch but when i came back the filament was no longer loaded to the head of the printer. I dont know how it came out but it did and the printer was still running. i paused my print and reloaded the filament but apparently the printer had made it through a few layers since the fillament had stop being fed. is there any way to make it go back a few layers or do i just need to start over. also on one of my prints the printer had a jam issue but it stopped and alerted me there was a problem not however this time what would have caused it to error the first time and not this time? first jam up was on a canned print that came with the printer. is it possible there is more checks in the code of that print?