I tried hiding some boards today and they don't stay hidden.

If I hide a board from this page by hitting the X

https://www.wargear.net/boards/list

and then go to the hidden board page I see the board I just hid

https://www.wargear.net/boards/list#

but if I click away and then come back, or just hit refresh the board becomes unhidden

And same if I go the other way and try to unhide a board I previously hid