We removed it and it didnt appear to do anything the wood under it was normal, we went ahead and sprayed a light coat of Neem oil mix on it just in case.That's really weird I would think fungus but it needs to be real wet for a duration. Whack it off and see what it's doing to the vine. It may be a bug.
I was terrified that it was something bad that could spread to other plants.Good call... I come from a more humid area.. we see weird shit like that all the time 90 % of time it's related to bad grafting and the formation of crown gall, or just the formation of a fungus growing on the Wood. You learn a lot of tricks to treat them. If you're really concerned at all you can use a 1 % solution of potassium metabisulfite and that will kill anything and keep the area free of pest for a long time.