I remember there being some reason for it but I don't remember what that reason is.

because they added old Morostide items to higher level wins/prizes in the games there. It wasn't supposed to happen that way, but something got messed up in the way they had planned to have them go out. I thought it was supposed to be temporary, but a while after Morostide, when we asked, staff said they had purposely extended the prizes. So, we keep doing carnival games and keep getting old Morostide items.