I found this on Steam thanks for Microsoft Co-Pilot:

• Workarounds:

  • Some players have found success with the following approaches:
    1. Quick Save and Load: While the game is stuck on a pending turn, press F5 for quick save and then F9 for quick load. This workaround has helped players progress past the frozen turn1.
    2. Manual Save and Load: Manually save the game while it’s stuck, go to the main menu, and manually load the saved game. This method has worked for some players, allowing them to continue their playthrough1.


• 1. • 1. I can verify that saving the game while stuck in "turn pending" and restarting from the save allowed me to continue the game.   I don't know what the root cause of the game getting stuck is, but it appears that this bug has been around a long time.