Collision issues When Moving*Toggle on/off* UE(4-27)

I am making a 3rd person game that I want to have building blocks inside of

These items need to have physical attributes when they aren’t being held, as in stackable and able to be stood on top of…

I can get this by having collisions set to default but when you pick up that item you clip through the map because of getting pushed by the collisions it causes with the character.

but if I turn off collisions you can pick up the block and move freely, but you can’t stand on top of it , instead you can walk inside of it.

so I’m looking for solutions to having the actor(building blocks) turn its collisions off when it gets picked up, and turned its collisions back on when its dropped?