GAS bug

I’m trying to get general skywalker and as I’m doing the battle, I take out one of the magnaguards. The droids do their thing but then the magnaguard that I just took out reappears, attacks, then dies again. All before the droidaca attacks. I’ve recorded it for proof but idk how to share with any of the mods. I believe it’s a bug because I’ve seen footage from 5 years ago from other people doing the challenge and they don’t have that issue. I’ll be more then happy to share the footage if anyone wants to see.