Hallo. I habe big problems with the g-code generated by simplify and bq Witbox 2. It starts so:
G90
M82
M106 S0
M104 S215 T0
M109 S215 T0
M800 ; firmware starting routine
The firmware starting routine must be at the beginning. Not after setting the extruder temperature, or the temperature drops. This is a serius bug. I'm only able to print, after reordering the g-code or changing the temperature manually