Q.Silver Lace Vine Problem
This is what is happening to my very young Silver Lace Vine. This is the 2nd year in the ground. Direct sun all day. The leaves started to turn in the past few weeks. I hope these pictures of the leaves front and back will give you answers for me. Thank you Kathi

Certified GKH Gardening Expert
This is, likely, Rust disease. This can be treated, but the environment must chance, as well. The area must be allowed to dry out between watering, if possible, and fungal treatment is necessary. This can be done with Neem oil, or a general fungicide.
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/ornamental/vines/silver-lace-vine