What gameplay feature is this bug affecting?
Showcase

What's the issue? Please include any error messages you receive and as much detail as possible.
I have 35 slots, only 31 of them being taken up, however it will not let me add more and says that it is “full”.

Any links relating to this bug? For example, if a particular lion is bugging, what is the link to that lion?


Any screenshots you can provide us with?


Please provide us with step by step explanation how this bug happened so we can attempt to replicate it. If it's complex, please include screenshots where possible:
I filled my showcase to capacity and then decided I wanted to switch out what was inside of it, so I removed some of what I had put in there and when I went to add a different item back in it told me it was full. There is a visual lack of items in the slots I had removed them from yet it says “You have already filled up all the item slots in this showcase room.” If i try to add anything there.