Delete your old mod and replace it with this one. Removed bishop titles as they cannot be specified via cultural tags. Did manage numerous small fixes and added more titles, primarily for the nomads and Goths. Also changed Hellenism, Zunism, and Zoroastrian names.
I removed bishop and bishopric titles since the moment I add a culture tag to them it no longer works. I did, however, did small fixes and added titles for most of the names. Most of the turkish names will have Qan and Qagan while Mongols still use Khan and Khagan. Some might not be accurate for the time period since, in-order to have some variety, I used living languages descended from that specific group. So Cuman is based on Kumyk, which Pechenegs also use since it was said that that their languages were very similar.
I also changed Crimean Gothic titles to use Old Gothic, for the sake of flavor. So a King would be Thiudans, a tribal king would be Reiks, etc. Likewise, unformed Hellenism and Zunism is now called Graeco-Roman and Cult of Zun, while reformed Zunism and Zoroastrianism are called Zunyasna and Mazdayasna, respectively.