I have this Cathedral Gem Sausage Vine on my trellis. It was planted two years ago and up until at least last October or so it was fine. I live in the pacific northwest and we've had very little sun and a lot of rain the past few months, I'm not sure if that has anything to do with this vine not doing well, but it has at the least contributed to me only seeing the issue now. Here are some pictures of what it looks like:
Any idea what could be causing this or how to stop it from progressing?