Collecting paintings, anyone?

[mytomanen_bre]

So long story short, my character is as much endgame as can be (340h+) and right now i am grinding paintings, trying to collect all of which the player faces some kind of enemy. There are 4 in total, all found in the dungeon.

Here is my issue. I simply can't find the Facing the Cerebral Mastermind (Player facing the Brain of Cthulhu). I've grinded for hours and hours, creating new worlds, raiding the dungeon. I've found tons of other paintings, and i found at least 4 or 5 of every painting i already have, the player facing monsters that is.

This painting simply won't spawn, or at least suffer an incredible low spawn rate compared to other similar paintings (sell price exactly the same as the others). Or i am just incredibly unlucky.
Raided 10+ worlds so far, getting really tired of it.

Does anybody even own this painting or is there some bug? Can the painting only be obtained on crimson worlds? (not mentioned anywhere, but would make alot of sence).

Thanks in advance, community.

[VagueCryptid]

I've gotten the painting before, but I don't think it was always on the Crimson world. But maybe you are just being unlucky. Are you looking through all of the dungeon, or only most of it?

[فاطمة]

To bad you can't stack paintings in the background instead of hanging them, you'd have a fun new prop(s) for your cellar.