Behavior change for parametric Tube between v3.2 and v3.3

Hello,

I am using a cylinder (created with CreateTube) to visualize a SpringJoint. The cylinder is updated in scene.registerBeforeRender. The following code works with BabylonJS v3.2 but breaks for v3.3.

https://gist.github.com/blondegeek/d47355372f8cad3b373a10cb0879ba5c

If you want the specific babylon libraries I'm using please see the babylon.custom.3.*.js files in:

https://gist.github.com/blondegeek/f6e5ca0fb42765a073de831b8808729f

Any idea what is causing this change in behavior between versions?

Thanks!