Others have probably already discovered this - So this is prolly just a message refresh to unbury it

I have a hollow icosahedron (20 sided) model that I wanted to test on a new build, called "20sided". My Duet 2 Maestro kept saying command M3220 not supported.
Hmm, not in the gcode, not in my startup script, then, lightbulb! This line in my post-processing commands:
curl "maestro/rr_gcode?gcode=M32[output_filename].gcode"
Oops.
Just a fun item on a Sunday morning.
DLC
Kits: Folgertech Kossel 2020 upgraded E3Dv6, Anet A8 upgraded E3Dv6, Tevo Tarantula enhanced parts and dual-head, TronXY X5SA Pro(E3DHemera).
Scratch: Large bed Cartesian, exchangeable heads, Linear slide Delta, Maker-Beam XL Micro Delta, 220x220CoreXY.