It's likely something with the Minus CSS screen codes. Pretty sure it's only supposed to have a certain number of slots. As Mawootad said ASFink is part of Minus Backroom, so the community CBliss would be a thing because with Sami and ASFink they can make a code that is Brawl Minus' select screen in the order that it is, with Roy, Pichu, and Raichu, that includes extra cosmetic slots for CBliss. Just my guess for what's coming for 4.0 though. I know the CSS is gonna have to be edited if you want CBliss in it though, if not I believe removing the CSS code, exporting Roy and Pichu's texture files and adding them in using the clone tool would work if you wanna go that route to add CBliss. Pretty sure you'd be stuck with Brawl's CSS IF that would work.