That would be a yes. I transfered a box fulla rockruffs to my game, ultra moon. And rockruff is still just only registered as seen and not caught.Are we sure the Pokemon you transferred are in the Alola Dex and not just the National?
Makes no sense though, since I did get them added. Maybe it glitched?pksm weakness is not registering the poke dex so pksm it first then
just pkhex it to add poke dex