When casting the spell regeneration (rank 1 life spell) on a unit its tactical regeneration is only equal to the amount of life shards you had when the spell was cast. For example I have 0 life shards and cast it on my hero, I will always regenerate 1 HP per turn in combat even if I gain some life shards. The way to work around it is currently cancel the spell and recast on hero.

The AI move through my territory freely. I ask them to leave or war, and they leave but simply re-enter next turn. I cannot get back into the talk menu again to get them to leave a 2nd time since they are busy.

Twice in  0.914 I have crashed to desktop at the end of combat (the screen where it shows what loot you have won). It is not related to the save as I have reloaded and played through combat again without crash.