Arc droid not reading manully edited gcode

i am a student using a school arc droid. i am cutting aluminum without a waterbed for a school project and am finding it difficult to manage the warping. i was cutting at a much too low speed of around 1000mmpm however i have since increased to 2500mmpm finding much less warping.

the other thing i was keen to try from my research was wait times between cuts. i am cutting out several inch radius hexagons in a honey comb pattern. i am using autodesk fusion to make my gcode files and cant put wait times in there. instead i went for the manual edit and went into the gcode files adding in a G4 P30. this didnt work and i realised it was probably because of the miliseconds rather than seconds. i then triedd G4 P3000 with no luck. then i tried G04 S30 but that hasnt worked either.

i am wondering why these manual edits arent working and i am starting to think it may be an arc droid issue rather than a me issue.\

thanks so much