Eye Colors Won't Show In CAS?

I'm trying to work on some new eyes, and I'm not sure why they're refusing to show up in CAS, but they do show up in S4S when I'm editing them. There's 20 swatches, and zero of the 20 show up. I've tried resaving, editing the thumbnail to a single color rather than two, and trying with or without eye recolors- other eye recolors show up. 

I used Medibang Paint Pro to edit the textures, but that's never caused problems before in other recolors I've done. 


www.mediafire.com/file/kithgk9uzcb1zhb/SlitPupilEyes2.package/file