May need some fluids....recently I watched this 2 minute video on yt that blew my mind in regards to “reading the vines”.
It may be applicable here. It went on to describe leaf positioning and how it relates to vine hydration.
Aka when the leaves are pointed out they are trying to absorb as much sunlight as possible and hence it is hydrated.
But when the leaves are drawn up and pointing down they are trying to avoid the sunlight to conserve water for the vine which especially in the last pic I seen looks like your vine is doing. Also it looks like they are pointing away in the second pic as well.
I love learning the old techniques and little, simple tidbits like that can prove to be most helpful to myself or someone else.
The brown leaves are toast/baked but try adding/increasing some water to one of your vines and see how it does compared to the others but to me it looks like early dehydration.