SOLVED: It WAS a priority issue. I had to change it to generator and change the number to something other than zero.
I’m trying to attach two ends of a spline to two nulls that are connected to joints on a character. I’m using constraints and spline dynamics.
I guess it’s somewhat quick movement, and one end of the spline pretty quickly comes away from its constraint point (which is a null). I get the dreaded red line.
I thing I’ve played with every parameter (including priority) that I can think of, but nothing seems to help it stay more tightly attached. Am I missing something?