PSA - Kislev and chaos realm traits

Playing as Katarin, went to Slaanesh's realm, had a great time, took a penicillin shot to get over the great time.

Anyway...

After popping back out, tired to sit in Volksgrad to remove the negative trait. And I sat. And sat. No dice.

Finally went to Kislev and the trait disappeared over a couple turns.

So, at least when it comes to the Kislev provinces, it appears you need to garrison in one of the big 3 to remove the traits.