Every time I open unreal, the materials I applied go away?

I dont get it… Sometimes theyre still in the slots, sometimes theyve been cleared. But if i dont keep that id on it goes away when i quit.

For some strange reason, I closed unreal and reopened and to my surprise all my applied materials were unapplied. I have this construction script applying them to a gun based on a camo ID, and it goes back to default after closing and refuses to allow me to change it back. If I reopen the materials in the material editor, that material will start displaying.

Screencap of my script:

It also seems that the materials I fix stay only if Im on that camo id. intereesting

I just got back home, still messing around with this but no luck so far. would be nice to get a second pair of eyes in here.