I say having spent the last weekish frustrated that my printer seemed to just be awful at making prints with even loose tolerances all the sudden.
I was using filament that had been left out a month or two, so not long at all, so I thought. Killed the rest of the spool trying to tune things, prints worked perfectly when I got a new spool out.
Goddamnit.
I was trying to print some parts and was having a terrible time, couldn’t get anything to stick to the bed and couldn’t get anything started. I leveled my bed a couple times, checked and rechecked my z offset just couldn’t get a print started. Turns out it was just the two rolls of filament I was trying are just bad filament or something. I switched to a different spool of pla and it immediately started printing fine.