Trouble with model LODs

[Guessmyname]

Having something of a strange problem here: the LODs for my recent model aren't showing up; as in, the LOD is blank, there's nothing there. I've checked the smds, they have exported properly and have all the verts listed etc, I've tried re-exporting, but there's no LODs to be seen; if I switch to one in HLMV, the vert count goes straight to 0, the model vanishes.

I'm just using my usual LOD method (ie using the ProOptimiser modifier - it's an 'organic' model), it's worked in the past, I'm honestly not sure what's going wrong here.

EDIT: Ah, found why. Little tip in future: if you use $renamematerial, put the LODs BEFORE it, or they'll vanish.