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This is probably a silly question, but here it is anyway.

For some reason, I can't get Hymn to Tourach's art to appear. Why, I can't begin to guess. In my card folder, I've got a file called Hymn to Tourach.full.jpg. I've got the same in a sub-folder called FEM. Nevertheless it still shows the blank/default image in Forge. It's the only card that's caused this problem. What gives?

The problem is that Fallen Empires used multiple arts for a single card. Hymn to Tourach should have four pictures, named Hymn to Tourach1.full.jpg to Hymn to Tourach4.full.jpg . The same holds for other cards from Arabian Nights, Fallen Empires, Homelands and Alliances.