I converted an S3 hair to S4 (for personal use only as per the creators instructions) using this tutorial: https://www.dropbox.com/s/lmpqy74e5...torial.pdf?dl=0
I followed it step by step and have used it many times before with no problems. This time however when I went to check out my hair in-game, the hair didn't show. At all. I used the filters, randomizer button and checked each category but the hair wasn't there. It's in my mods folder like it should be. I'm not sure what went wrong. It shows up just fine in Sims 4 Studio. The package file is attached in .zip format. If someone could help that would be great. Thanks.

This is how it looks like. Cloned another hair and imported your mesh into it (still simglass), then changed the texture to yours.
From what i saw, this has 25000 faces in each lod. And it looks like all lods got into one mesh. Yep, i took a closer look and saw all lods are definitely in one mesh.
You may have done something wrong this time, like merging all lods together, and textures look odd too.
Attaching the package i created, it shows up in-game.

Wow. Thanks for testing it. I'll re-do it. Thanks for your help.