I found a compatibility issue between this mod and Machine & Robot Expansion, and also really any mod that changes an empire's country type (and thus their capitol). When changing from a machine empire to a regular empire using the ascension perk added in Machine & Robot Expansion, ACOT suddenly decides the delta and alpha capitols don't exist anymore. The jobs for them are gone, and the upgrade option from enigmatic palace to the void palace is simply gone. Likely since the names between capitols are different vs organic and machine empires, and it's very understandable this sort of situation wasn't accounted for. Completely softlocked, basically. Luckily, I figured this might happen, so I saved right before trying out the ascension perk and rolled back to it. But it is a little unfortunate, as I was looking forward to releasing ultra-powerful vassals with my tech level.

This isn't a huge deal or anything I think should be a priority, it's a really niche issue, but if it's not too difficult a compatibility patch would be nice. Although, I can see this issue affecting other mods that changes empire type/capitols.