Doesn't dubs closed caption use AI regardless. Pretty sure I've read that for dubtitles they do use some kinda AI automated system, for those subs which many dislike to begin with.

Well that's mainly because s2 looks like it's a completely different translator from s1. The bouncing around names is actually correct as many of the characters actually used her Marine name during the cosplay events and shoots.

Marine is her cosplay name in the series. There's no AI used for the subs...