PC - Achievement "From the Deep" not progressing

Dulfy_Mans

The achievement "From the Deep" (grab a survivor hiding inside a locker 25 times in public matches) isn't progressing, despite having found someone inside a locker in my most recent game. The achievement is sitting at 0 / 25. The map I was on for my most recent game was Wreckers' Yard, and it was the locker that sits next to one of the crane loops. I was playing as the Dredge, but it was a normal locker search grab, not any of the special ones he has.