I just took the Cadian system in the Chaos campaign on Hard, but rather than being a buffet of deliciousness for the Dark Gods, only Klaisus was available to make an offering. All the other planets jumped directly to two evolution points, and can't be sacrificed.

I reloaded a save, used Slaanesh to push all the defending fleets away and took it without a fight but still got the same result.

Is this a known issue? Is it something I did (like not have Malos take it personally)? Is there a way around it? If not, how can I edit my save to fix it?

Cadia stands?

It made me a very sad Chaos worshiper, since I've been having great fun with the Gifts mechanic and was looking forward to tearing the rest of the sector apart with the ones I got from Cadia!