Unity splitting imported 3D objects from blender into meshes. When applying gravity to it, it smashes into pieces.

So I imported **3d object from blender
** into my Unity project. I have found out that unitys limit is 2^16 and there is no way around it, but I want to apply gravity to the whole object so it would stick together, but when I have mesh colider, ridgedbody and box colinder on, object smashes into pieces.

Using Mesh collider on a very complex mesh will not be good for your game’s frame rate/performance. I’d advice you to use a combination of primitive colliders on the parent gameobject and remove the mesh collider.