Recently my printer A1 started having issue when I wanted to use the 0.2mm nozzle where the nozzle prints into the build plate and when using the textured PEI plate, you can hear it scrape on the surface. But when I tried the 0.4mm nozzle, everything was working perfectly with no issues.
I tried 2 0.2mm nozzles, and both did the same thing, they have no damanga and no clogs, on of them is even brand new.
I tried different plates, places to print, scnead the everything, did multiple calibrations, chceck the heater screws, checked the extruder, trammed the bed and it still print too low and only with the 0.2mm nozzle. And yes, I made sure the nozzle is properly seated as I do every time.
Using Z offset only works with Texured plate and I use that one the least so that is off the table for me.