Hi Exerion,

It looks like a bug indeed. I am going to move the thread to the Bug Report section for a further analyse it.

By the way, I recommend you to create the threads on the section of the game, as we are in Endless Dungeon, not in Humankind :)

Hello! 

• Your last two auto-saves, and any other saves you think may help show the problem. Your saves are by default located: 
  • PC: \Users\[username]\Documents\Humankind\Save Files 
  • Mac: This is hidden in the Libraries folder. You will need to do an internet search to find specific steps for your OS. Once the libraries folder is revealed, they are in /library/ application support/humankind/Save Files

I also had this issue when I took an empty city from neutrals. The workaround was to build a garrison, click set it as a spawn point and then set it back to the city center. 

I have come across a similar one.  I had a couple of garrison spawn points for my city and was building some units to spawn at one of the furthest away ones when I was attacked.  The battle zone included the garrison and as you would expect you cannot span there anymore but the city was not included and whilst I could continue to build districts and infrastructure I could nt change the spawn point for units or build units as that spawn point was now effectively engaged.  I dont think this is a design intent and felt just like a bit of an oversite.  

I have the same issue, only one city left and that city lost its spawn point when my other city got captured. Game breaker, and have to restart new game.

I've seen this one in all my games. Pretty much after conquering an enemy city. The only workaround is to build a garrison, that way it will create a new spawn point and restore the main one too.