If you are seeing a red box, the OMOD is not installed. Red shows data file conflicts, black show plugin conflicts. Lineage Elves use Ren's head mesh, so that conflict is expected. Data file conflicts are rarely game breaking, but they can cause inconsistencies. You should be conscious of that when using cosmetic replacers. Also, if you are using a body replacer, you should install the UOP beforehand (although, I think that the UOPs OMOD script prompts the user about that, which would avoid overriding a body replacer's stock replacer files.)
Yeah it's not showing a red box on the right window in OBMM. It's when you hit "show new conflicts" that it does. It is however showing a black box. But inconsistencies doesn't bother me that much..... depnding on the inconsistancy ofc. game crashes do. But some of the most commonly used mods like KT race fix .... adonnay's classical and elven weaponry... among others like Cobl ..... are showing as being affected ..... I'll just have to play it for a while and see exactly what's showing up.. if anything. It just kinda surprised me to see that many.... especially with the most popular, common mods. No biggie so far..... It'll be a while b4 that lrg file gets done. I'm going to play for a while and see if I can find anything that I can't live with. thnks tho