I trashed a Sycophant and a Council Room in a Necromancer game, and the only cards appearing in the trash were zombies. Game #103768662
There was a general problem with seeing cards in out-of-play zones, that should have been fixed by a new version yesterday.
That version was applied around the time your made your posting, so I assume/hope the issue was fixed with it. I couldn't see it now when I reloaded your game and stepped through your first turn where you trashed a Sycophant.