Item display case holding items hostage.

I just bought some item display cases but i have discovered that it will lock your items without being able to take them out. This happened when i put a second item into a item display case and i could take out the first one however they now both have items locked in them with no option of taking them out. Link to the picture showing the issue. https://imgur.com/a/oewY3tF

Going to the current league clicking on the item case, going back to standard on another character fixed this issue.