How to Stop Random Physics Glitching?

So I have this nice rope swinging game going here, the only problem being that whenever the Flinger (as it's called) hits the ground after firing a rope, it spasms out of control. Is there some setting in Physics that I need to adjust to fix this? I've already tried messing with Velocity and Solver Iterations but to no avail. Thanks!

(This is kinda what I'm talking about > https://imgur.com/a/E5z77)