1.) After completing a battle with a town, the game will then continually skip turn after turn.
The only way to stop it seems to be to exit the game, but once doing so, you will notice that the sound is still playing.(The game is still running in the background, and must now be terminated though the "processes" tab in task manager.
I have found this bug twice, by attacking and winning against the same city.
Saving immediately following victory, once the end turn glitch starts, will save the game...glitch and all unfortunately.
2.) Using the spell to transform shards into death shards causes the shard to disappear. Upon the following turn the game will tell you that a shard has been found and should be built upon, but when clicking upon "build" the button never registers.(The death shard is invisible once created, but can still be clicked upon, just not interacted with further.)