Can`t start the last mission for ANU - The Schism - gamebreaking

I`m in engame.
I chose Anu as faction and let them build their palace.
Thus I moved 8 soldiers to the palace to trigger the last Anu-faction mission.

When I get to the screen to select my soldiers and trigger the mission start, the starting button is clickable, but that doesn’t result in anything.
Mission won`t load.

Please fix ASAP!
Problem was not there before Leviathan.

A post was merged into an existing topic: The Schism mission not loading