Some sets have issues updating prices for Cardmarket. For some cards only the foil and not the non foil price shows up.
The sets I have issues with:
Special Quests (used to work, but broke)
Fallout
The List (for me only the Nature's Lore)
Throne of Eldraine Promo's
Bloomburrow (but this might be because the set is new)
I do know that Cardmarket had some updates with their API again, might be because of that.
Again thank you for all the amazing work!
This is how you can help on that front: https://www.deltakosh.com/urzagatherer/questions-2/help-make-urzagatherer-better