No the image folders are definitely correct. appdata/roaming/strive/ then the respective bodies & portraits folders. And when I go into a game and manually try and choose something, the images all show.
I'm assuming the tags are incorrect, which is odd because I went through with Zepeteus' updated program and re-applied all the tags to every portrait and body picture I use (which was torture lol), but I guess I'll have to just go through it all again today, start small with maybe just one race and re-do the tags then see if the game will recognize them, and if so, slowly do them all again.