As long as the stem is okay, the dormant nodes will bud out. I've had one that practically died completely back to nothing but the stems, and it started growing again after a short period of adjustment.

what is wrong with it?

I meant to put too much light. Its been hanging from a skylight all summer.

Mine lost most if its leaves over the winter. I placed it outside as soon as it warmed up enough to do so. Yet it still sulked for the better part of the year. I was tempted to just let it go, but didn't because it has too much sentimental value. It finally started growing again during the summer. Since it was already in a very bright spot when that new growth appeared, it was pretty much acclimated to all of the intense sunlight it was receiving. Like most of my plants, it gets direct morning and afternoon sun, and dappled, partly shaded sun throughout the rest of the day. I'm so glad that I kept it.

These plants truly are survivors. Years ago, I planted it into one of those wire hanging baskets with the coconut husk(?) liners. It seemed like no matter how much I watered the poor plant, it just dried out way too fast and suffered dearly. That is until I replanted it into a self-watering hanging pot. After that, it just exploded with new growth. And then more recently, I inadvertently left it overwinter in an unheated garage. That's why it lost most of its leaves. From the way it looked, I didn't think it would make it. But I just let it take however long it needed, and just kept an eye on it. Since it didn't kick the bucket, I didn't give up on it. Now it's finally bounced back and returning to its former glory.

Mine still has plenty of leaves theyre just pale looking with yellow and brown edges with holes in them. LOL. It started spring so lush. I wish I wouldn't have hung it from the skylight but it grew so well for so long. I've got it in a less brighter spot just to see what happens.

Yeah, I agree with Tiff. That doesn't look like sunburned leaves to me.

So what do y'all think the problem is?

Looks like a self-watering pot.

I don't use it as one. I take the tray off when I water it.

I have mine potted in the same type of self-watering hanging pot. The only difference being that mine's the off-white color, not the green. I use a fast draining mix that doesn't hold on to too much moisture, no matter how much it gets watered. When it's outdoors, I just leave the water in the bottom reservoir. But during the colder months, when I keep it indoors, I drain the reservoir out. I don't ever bother with removing it.

Perhaps yours is having issues with the soil? Does it drain fairly well?

Do you water it thoroughly?

I water it thoroughly although the soil its potted in isn't the best.

Probably just compacted soil. The openings on those pots are so small, makes it easy for stuff to just get mashed down there.

I guess I'll dig around and see what's going on inside my pot!!!

Are they rooted cuttings or an established plant? If they are cuttings then that's probably the vines using the leaves to build root mass?

Its an established plant. A pretty good sized one.

I just couldn't tell from the pictures :)

Could it be hungry?

It could be. Im just gonna play around with it and see what works!!!