i've been messing with this for months and i've almost got it! but not quite i converted a boat from the sims 4, eveything looks fine in the high detail lod.
BUT in the medium lod the last two mesh groups turn black? even though the textures show correctly in tsrw..
i'm thinking it might have to do with the object i cloned as a base, if anyone has any suggestions for other objects i could clone that might work (or how to fix this!)
please let me know! i would very much appreciate it!!

Which object did you clone? Because if you had something with like a glass shader, or anything that isn't phong/phong alpha, it could screw up the medium LOD part

I cloned one of the destroyed houseboats from ITF! I don’t think it had a glass shader but I could be wrong, maybe that’s the problem! I’ll try again tonight. Thanks so much for the reply