I have an application where I have a oval track which I want to animate 12 carriages moving around the oval. All carriages are linked together with a distance mate, I have been using path mates, but found after 5 to 6 carriages path mates become unstable, switching direction and flipping.

I have switched to cam mates, because the assembly remains stable for all 12 carriages, a manual movement works, but I want to analysis the distance between the first and last carriages using motion analysis, but cam mates don't seem to work in motion analysis. My VAR can't help, and said it can't be done. Does anyone have any ideas.