The Volatile Seaforium Blastpack has been nerfed to only open things requiring 400 lockpicking skill and bellow (was 450). As far as I know it was never mentioned in any patch notes.
This is a rather aggravating nerf as ghost iron lockboxes require 450 "lockpicking skill". Has anyone found a new recipe presumably also silently added for an upgraded explosive?
Edit: See post #5