It's disappointing when stuff that costs extra, especially at the exorbitant prices of crown crates, has quality issues or is bugged.
In the Diamond crates, the Revelry Sparkles are glitched. If you watch for a bit, you'll notice the background flashes in and out. It's a really obvious result of missing or black frames that can happen when an animation isn't looped properly.
I was also looking forward to the return of the Dark Chivalry crates for a long time so I could finally get the Scholar's Spectacles for my Arcanist Khajiit... and it looks so stupid, they sit so high on the face. I understand this is probably a variable 3D geometry issue where they can't account for every face type. So this one is more forgivable, I don't even know if this can be fixed.