There's this bug I encountered in Tixa, where after you discover the Warden, and end your turn after you've finished issuing orders to your mercs, the game freezes.

Someone else encountered this bug as well:

1. Bug report: In Sector D13 Drassen Mine, the game freezes when my mercs walk toward the Drassen mine office during combat. It happens when they spot one of the enemies.
2. This may be difficult to reproduce, so I have included my save game and Ja2_Options.INI. Link is broken on purpose (space between Https and happy
https ://www.dropbox.com/sh/930cechqtoqfy7w/AADXYa61dZ_p_mEhjz3amq1Ia?dl=0
3. After loading the game, walk towards the mining office.
4. Running Windows 10, JA 2 1.13 build 8408 (12 Jun 2017)
5. Running Aimnas Bigmaps Mod (Summer Con Update)

http://thepit.ja-galaxy-forum.com/index.php?t=msg&th=23023&goto=350416&#msg_350416

1. I figured out what has been causing this freeze, but I am not a coder, so I don't know how to fix it. In AIMNAS, anytime we uncover a General (VIP), the game freezes. Here is a saved game right before we uncover a general. Would someone be able to double check my hypothesis and suggest a code fix?

2. Saved game and JA2_Options.INI have been uploaded to drop box. https://www.dropbox.com/sh/ghm9enfnzgtjre3/AACOrZLK0yXmNYonsHlSD2FWa?dl=0

3. Load the save and click end turn. The game freezes.

4. Running Windows 10, JA 2 1.13 build 8488 game dir 2391
5. Running AIMNAS Bigmaps Mod (Summer Con Update)

http://thepit.ja-galaxy-forum.com/index.php?t=msg&th=23023&goto=351248&#msg_351248

That is almost exactly what I experience, except I'm running Windows 7. JA 2 1.13.8554(5), 2420, and the latest AIMNAS build from github. Anyone else get this, finding a VIP and then a freeze when ending a turn afterwards, and if so did you manage to find a fix for it?

Report this on Bear's Pit that's where you will most likely contact current developers of 1.13 and AIMNAS.

I tried to register several times, but I couldn't join the forum due to some anti-bot/spam measures.