After playing for about 1 hour last night, I encountered two small issues.

1. After founding my capital city, I sent out my channeler solo to an inn: he received a "kill the robbers" quest. When I attacked the robbers, I saw the animation on the map of my channel and the robber army taking swings at each other until it showed my channeler fall down in defeat. Then I got the message that my channeler was defeated and was teleported automatically back to my. Then a windoow popped up (it was either for the battle summary or for the start of a new battle). Then I entered the tactical battle with my channeler at 1hp and the robber army was down to 1 robber at 1hp. I killed the robber and won the battle and got experience. 

Right after that, I found my channeler back in the capital and was stuck there for 4-5 turns as he should. When I could move my channeler again, I moved him back to the quest location and found that the quest location and inn had vanished.

So the bug here was that after my channeler lost his battle, a new battle followed.

2. I encountered slowndowns when in the design units window. Not sure why, especially since I have a high-end computer.