Are there any actual cloaks in the game? Ah just received a custom cloak and, because it's a custom item, it can only go in the back slot and not the cloak slot
While not a true fix as such, and quite possibly you've already considered this, if so, I apologise, but you could always save the 100x100 and 400x300/600x600 images to your hard drive, then spawn a new custom item using CPs, and selecting the cloak slot and upload the same custom artwork? Just an idea.