i have similar issues before. i noticed that after a firmware update i need to run a G28 , G28 X0 Y0 , and a G29 . First . if i dont do this my nozzle also stay high when starting a print .

but in my Case the printer doest do the abl procedure after g28 if i dont do this first after a firmware update. i havent figure it out whats the cause of this .