Tropicals & Tender Perennials: Something's eating My Passion vines! Please help, 1 by JLD_II

JLD_II wrote:
Hello. I have this leaf curling I'm finding on many plants and mainly on newer growth. I've yet to find a bug in or around the problem areas. They tend to like my passion flower leaves the best but will do it to most anything. It looks like a bug pinched off a vein in the leaf when it is first growing then just curls up around the pinch. Here are a few shots of what the damage looks like.
I would really appreciate help in finding out what is doing this. I'm usually pretty good with this sort of thing but not on this one.
Thanks, Jeff
This picture is from the back side of the leaves.