This is really annoying. Adding more then 3 Bottom-Layer seem to help, but not always. They made a hot fix with the smooth spiral option, but it also does not work in all cases.
Edit: I found a cura profile on a german website that solves the problem.(Bambu Lab A1 mini - Cura Profil mit Druckeinstellungen)
You may use FileZilla to send the cura gcode to the printer over WLAN without removing the sd-card. (https://youtu.be/Hpz_HkLTyaQ?si=zcC96YvvOA2qKLuy)
