I finally figure out what was causing the OCBP/OCBPC disappearing from the Pony Race for some reason and it was the CaN.esm that was causing it. On the Spell tab then on aaaPonyRaceFix then on SPIT - DATA, there's a Type that needs to be change from a Ability to Spell. Doing this makes the OCPB/OCBPC stay permanently on the Race.   From this:   To this:   But unfortunately there's a catch, it has to do with the Race Customizer (not the mod) thing