It will be fixed. Also you will have the ability to recruit Pahlava Shivatir from two buildings: one in certaint steppe areas around where they evantually took control of (Daha Dahyu, as well as Sogdiane, Margiane etc). You can get them from the Nomad Camps level one there. But in places that aren't nomadic, like Parthava, you need to get them from a MIC2. This will hopefully be in the next patch.