Dothraky colonized province reverting back

So i finished doing a colonisation war for province 546 Sarys and the province reverted to a nomad and turned uninhabitable like Valyria so i could not fix it like before with another province by taking it back with the console. I found a workaround by cheating myself a super steward and insta building a castle and giving away the city. I do not know why this worked but it did, so i would really like if someone could give me an actual fix since i was loving this run =(.


here is a link to the save: drive.google.com/file/d/1KEfnO5hZyHIxhmeYMFITFEMEUkAYoPAk/view?usp=sharing

if you let some time pass you will see the bug I do not have a save for the other times it happend but those times it gave the province to a nomad.