Ive now beaten everything in the story on normal, but when I try missions on Heroic or higher and play cards like father zantus, or greater cure, the animation plays and dice roll, but no cards are actually healed.

I have been looking around to see if this is intended, but that seems unlikely and so far have found nothing to support that. The Wild modifier of the most recent was simply +2 to difficulty of acquiring boons.

 

 

ID: player1406124#1135

Party: Merisiel, Sajan, Alt Seelah, Alt Seoni

 

Happened on multiple missions, noticed so far on all three of the B missions

Multiple locations

Sounds like the old healing bug is still around. At this moment my advise is to use healing only in characters own turn. Sometimes closing the app and restarting has caused the healing to kick upp again. But it is a bug that has been around a quite a long time.