Where do I drop anchor?

I’m trying to model a tensile structure (crossed tent poles), with a suspended rotating actuator hanging from its apex. The “tent” and suspended “trapeze” behave as I’d expect. But when I try to actuate the trapeze I get this:

Which is interesting :slight_smile: but not quite what I was after. I want to “anchor further downstream”? Any advice greatly appreciated.
tent spinner1.gh (24.3 KB)