You have the same character doing 2 actions at the same time, should be something like:
then/THEN means animation/code happens right after previous animation/code.
You can leave the & if you want her to do the animations at same time as other codes below. But you just can’t have her doing another animation below otherwise her most recent one will cancel out.
INT. VIP CLUB - NIGHT
&zoom reset
&FLO spot 1.280 270 0 in zone 2 at layer 4 AND FLO faces left AND FLO is dance_grind_neutral_loop
&CICI spot 1.280 160 0 in zone 2 at layer 3 AND CICI faces left AND CICI is dance_grind_neutral_loop
&ARIANA spot 1.280 50 0 in zone 2 at layer 2 AND ARIANA faces right #place LION in the scene too @pan to zone 2 @ARIANA is admire_happy then ARIANA is talk_excited_happy
#Feel free to move them around using the spot directing helper.
Yes you should place them onscreen, move them around to their desired position, change the height. Place them before you cut to zone 2 to avoid popping up character issue.