How to allow collisions on a Child of a Non Kinematic RigidBody ?

Questions & Answers
1

I have a parent and child object

Object1 : is the parent
Object2 : is the child

Object1 has a mesh collider and a non kinematic Rigibdody attached to it
Object2 has only a mesh collider.

Object1 has a smaller mesh collider than that of Object2

projectiles will collide with Object2’s mesh collider whenever i remove Object1’s RigidBody.

But I need the rigidbody and I cannot afford to change the current parent child relationship nor make any major modifications.

How do I get Object2 to detect collisions while having the RigidBody attached to Object1 ??

2

Create a second child object under Object1 and move the rigidbody there.

It will take a little bit of buttoning up in code, but it should work well.