I was doing manual leveling and follow it with active leveling once a time every month, mostly.
No matter how i manual level the nozzles, whenever active leveling is done, the printer will always press nozzle 2 too close to buildplate once print is started.
I can see the nozzle was so close that it got pushed back a bit upwards, so close that filament cannot print out of it.
Core 1 will always be fine and well calibrated, while Core 2 will always be too close to bed, after active leveling.
Either the active leveling is buggy, or the result of Z calibration be