Did some testing and it seems that the primorditats perk and Vnae markings can clash with each other, and if you have the former, it can potentially block you from getting the latter via tfs. not sure if it works the other way around.
i may also be wrong about this tho cuz in anther save it seemed to work fine, but i had edited the daylights out of it so idk that may have been a factor, sorry
i may also be wrong about this tho cuz in anther save it seemed to work fine, but i had edited the daylights out of it so idk that may have been a factor, sorry