And also: City sum of production is not calculated in a right way after this! It still sums up with the "old" shard but when hovering over it the +1 is missed.

So when you had before 2 water shrines in city and corrupt 1 the city still show up +2 (hovering only +1). The Overland shrine sum seems to be correct. And of cours, it doesn let me build the new death shrine, see bug above.

Same for other stuff. When losing 1 crystal mine (out of 2) by rampaging mosters city details still give me +2 instead of +1.

Same issue here. I corrupted an earth shard I had already built. It turned in to a death shard, but does not allow me to build on it.

EDIT: Another strange thing. I alt-tabbed out of the game, in order to make the post. When I alt-tabbed back in to the game..the death shard, turned back in to an earth shard..I corrupted it again, it went back to being a death shard, still can't build it. I tried to reproduce it turning back to an earth shard, but it did not repeat, it stayed as an unbuildable death shard.

Actually a bit more strange than I thought. After I exisited the game, and went back in, the earth shard that I corrupted, has the unbuildable death shard, but when I zoomed in, I could still see green as well. Turns out the original earth shard is also still on the tile..when I click on it once, it shows the death shard, if I click again, it shows the earth shard, click again, back to death shard..repeat infinatly. I can re-build the earth shard, but no matter what I can not build the death shard.

Here is save game, with both the original earth shard, and the useless death shard from the corrupt spell, on the same tile.

ok I have been working on the different cases where weird things happen with this spell and have a report in for it, should be fixed soon, thanks for the report!