Hey Agrodal, thank you for reaching out I can't say I've heard of this before. Can you try running the game in Debug Mode (found at the bottom of the PDX Launcher), this will allow the game to generate a lot which might help us locate it. These logs can be found in /Paradox Interactive/Age of Wonders Planetfall/Logs after a session has ended. If you can mail us that along with the save at logs@triumphstudios.com we'll try and figure it out.