Posted on 20 September 23 at 03:33
Oldman Jr's tip worked for me. Got my Get All Supers achievement and then the last one didn't pop. Shut down the system fully for a minute, rebooted and then went onto the online servers. Upon loading in it popped finally. To note I did get my last couple of achievements on the single player servers. So don't know if that made any difference being on the multiplayer server for the final one.
"If you'd have backed up any further, you woulda had to mail him the bullets!"-Tucker