California Department of Motor Vehicles [CA DMV] review: Cannot update car title

I tried to update the title to my car on 1/21/22 at the Pleasanton office. The title has both our married names (and not or). I came prepared with the proper form, the original title with my ex-spouse's signature on it releasing her interest in the care, and the marital settlement agreement showing the car belongs to me. Despite all of that, I was told I needed an additional signature (by the odometer readin) to do this. My spouse lives in another state and I have no contact with her. All I want is a new title, with just my (unmarried) name.