I wasn't concerned about the bleeding. That's pretty normal. What had me concerned was the orange color, which is not normal. I'm also noticing a lot of my vines have black wood this year. But if it's not anything to worry about, that's good to know. Maybe I'll squirt one of them with the hose in a few days.
In fact, the bleeding doesn't occur on dead wood, so it's a good sign to me.