I want to combine 2 body that created from CreateBodyFromBox3() Method with suptract operation.

Unfortunately, InsertCombineFeature() doesn't return any feature (it can not combine, fail).

I don't know how to solve this problem, or InsertCombineFeature cannot use with the body that came from CreateBodyFromBox3() method?

I've already either try somethig like selected by mark or pass  the array object of body into function , but nothing happen.

thanks for the help