C36-7 gone Invisible

Yes.Another invisible loco.
I don't know why.I downloaded the default C36-7 and it still doesn't want to come up.Nor do my repaints.
Does anybody know what's wrong?
I don't know why.I downloaded the default C36-7 and it still doesn't want to come up.Nor do my repaints.
Does anybody know what's wrong?