The game will rarely freeze in the AI test mode (cause not yet investigated).

The border that shows what tiles a unit can move to in the current turn will include tiles that would require moving through the city.

Steps to reproduce:

1. Move a swordsman to a tile next to a Persian city surrounded by flat terrain (including the city tile)
2. End the turn
3. Select the unit if not already selected
4. Note that the movement range border will indicate you can move to tile on the opposite side of the city in this turn, while you actually can't

The tutorial system doesn't quit/reset/get destroyed when quitting to menu. This can result in tutorials getting triggered in other modes if the player quits before the tutorial is finished.