So I was in Lower Underrail, not far from Warehouse Block Beta...
... and I noticed an Explosive Barrel next to enemies, perfect for taking them down right away...
... so I threw a fireball with Pyrokinesis...
Wait, the Explosive Barrel did nothing? So the shelf and locker completely shielded them from the explosion? That's ludicrous! D:
I'm guessing it's not intentional for that Explosive Barrel to be completely useless despite being 1 tile away from both of them.
(Also getting major deja vu regarding this bug, but I went back through my old posts and didn't see it.)
EDIT: It occurs to me that just attacking the barrel by itself would demonstrate this better. Shame that didn't occur to me at the time, ah well.