There are some cards that don't seem to be in the database properly. They show an anvil instead of a proper set icon, and they don't have images but rather placeholder art instead.
"A-Sigardian Paladin" -> Should be "Sigardian Paladin" and its cost should be 4 not 3
The Wandering Emperor seems accurate but does not have a set symbol so doesn't pick up the art even if I put an image in the right folder (NEO)
There are a few more but I forgot to screenshot them. I will update this thread as I discover more.