Adventurer 4 Leveling

Hy!

I am really no n00b in printing, and usually print with a Guider 2s or a Funmat HT. However, I also bought a Flashforge Adventurer 4. The Printing Results are nice but I have to recalibrate it before every print. Is this normal at those printers. I never had this on any printer before.

If I dont, the nozzle is always way to close to the bed. It seems like it doesnt safe the value.