Try untying the line and dragging it behind the boat for a while. Sometimes this will make them behave better.
I have this same problem on my 16 jib line... is that a real tip or tongue in cheek joke? Sounds crazy enough to be an actual thing.
I have seen it work... Personally I gave up and went to swiftcord on the front of the boat, and Salsa at the main. I won't be going back, it is a massive upgrade IMO.
There just isn't a need for a double braid line, not with some many easier to handle choices around. Even the most expensive lines don't add up to much on a H16