Board Thread:News and Announcements/@comment-21547349-20150826152644/@comment-7326455-20150926222008

BunsenH wrote:

I'm seeing the same display bug, for both the Castle and Vault. Look again, B. They're different gemstones, albeit very similar in appearence. =P

That said, I have occasionally found that the game doesn't redraw properly (so, for example, finished products don't appear in the trays, spawned crystals are invisible, or progress bars don't update), and scrolling can occasionally make the monsters play out of sync.