Don't know if this bug is a new one, but I noticed it for the first time during a game today.

If a marine (it was a HA in this case) is welding while using a pg the sound keeps playing at the pg location.

Did you manage to reproduce this at all? There are several mystery, random welder sound issues still floating around.

did anyone else hear it? did you try typing "stopsound" in console? sometimes, usually with doors, there will be a sound that continuously plays back and "stopsound" fixes it without fail (that i have experienced).