Repro steps:

1) Create a custom faction.

2) Set the Gameplay Affinity to Ship Bound, and the 1st population bonus to Extreme Foremen.  

3) Attempt to start a new game as this custom faction.

Expected outcome:

Game begins.

Actual outcome:

Endless Space 2 is stuck endlessly loading at the "Launching Game" state and cannot be ALT+F4'd out of.

Notes:

I  assume this has something to do with the change to Craver depletion  rate in the new patch, because just a week ago my custom faction with  these traits was completely fine. 

This  appears to be a twofold bug: These two traits cause Endless Space to  fire a null reference exception in ExecuteFactionTraitCommand, and then  the Game Creation process doesn't correctly handle the GameException in  order to return you to the game creation screen.  Instead, it just hangs  there endlessly, eating up 50% of the total CPU.

Output Log:

output_log.txt

Hey Mechtroid.

Looks like we have exactly the same idea how to modify our Cravers race :) I can confirm this issue with one exception. I can close my game either by right clicking on game in windows bottom lane and choosing "Close window" option, via Task manager or by pressing Alt+F4. I am using windowed borderless option, maybe here is a difference.

Thanks for your post. I hope it will be addressed soon.

Have a nice day!

Hello,

This issue has been reported a while back and we've worked on a fix to address it :)

It should be pushed soon for you guys!

Cheers,