Alright, so, this is sort of a weird one. I’m only encountering it so far with clothing made by Blotnik for some reason or another.
Any reason why this would be happening?
Judging by the fact that Blotnik does not have BC, it is possible that ROBLOX had automatically taken his shirt off sale when he lost BC and there is some flag that was not set to false, therefore it still believes its ForSale but it is not purchasable. It was likely 10 R$ prior to this, hence why the 10 R$ is showing.