Kangaroo in Rhino6 GH

Hi all,

I'm wondering if Kangaroo is not working properly in Rhino 6 GH?

It seems to be not passing on custom goal objects properly - here the component is supplied by Daniel Piker's image-based circle packing.

The goal object wouldn't load the kangaroo .dll whenever I close and reopen the file, but seems fine if I just reload the .dll through manage assembly manually after opening. Nonetheless, the solver is returning the error: "Unable to cast object of type 'ImageSizedCircleCollide' to type 'KangarooSolver.IGoal'."

Please if anyone could offer some help that would be greatly appreciated!

Thanks!