So, we were doing path 2 of CoF and somehow just barely failed at the bomb part. We tried redoing it and Magg would not accept the bombs, so we all had to leave. I googled the issue to see if anyone was able to figure out a fix and I have the same exact problem as this guy from 2 years ago https://forum-en.gw2archive.eu/forum/game/dungeons/CoF-p2-bugged-Magg-s-bombs/first#post1596591 .
Also, a dev did respond in that thread 2 years ago saying this bug would be addressed, but it hasn’t, so there’s that.