Unfortunate. Seems like you got a rowdy bunch lol. If I recall right when I unleashed them on an aphid infestation I had them in there for like 2-3 hours. Idk I’d that would make a difference or not. A lot of them did peace out pretty soon after I let them loose, but a handful stayed around for a few days.

Did you cool them before you released them? Lowering their body temperature helps keep them arou d and on your plants to take the little fuckers out.