Found a bug: if I hide t4 cards, click "Only Show Playable Cards" and then tick my orbs to be nature nature fire, I can't see any twilight units or twilight tier 2 cards. I can only see them if I enable t4 cards, but then I see a lot of of cards that don't fit my orbs of choice (such as Deepfang and Harvester), plus them and all twilight cards are not sorted properly.
Screenshot: