After placing the 3 blocks the turn continued - I'd lost the card, but no blocks had appeared. The log said ...Instigator=myMage,targets= With "targets" being empty It was in the Rose Dragon Wisp Cave, on top of 3 water tiles. See attachment
The water tiles are impassable terrain and therefore you cannot cast a terrain attachment over them. edit: in terms of flavor, try thinking of a wall floating on top of water. Doesn't make sense, right ?
Oh, thanks After posting I also wondered whether stone-blocks would just sink if placed on top of water Suggestion.. right now the tiles are yellow at your cursor position, when you're about to place a stone-block. Could it be another color for impassable tiles? So the user becomes aware that something is amiss here. If it's possible to bind the 3 squares together across impassable tiles that is - otherwise it would be nice not being able to place the blocks on top of impassable terrain at all
