Hi,
I'm using the Pickup component to try different things.
I added objects with the Pickup component that I put in a closed box. The box simply consists of 6 cubes for each side with a collider box. The objects in the box each have a box collider.
The problem is that when you grab the objects and when you move them, the objects can sink into the faces of the box and they can go through the box.
I reduced the Max speed and the Force break but it doesn't change anything. Objects can easily pass through when objects are moved quickly.

Here is a video to better see:
https://uploadnow.io/s/eac9e24e-eca5-4de5-a463-e1bd898d5d99?o=t
The second problem is that if you grab an object and drag it onto a plane, the object shakes a lot and sinks into the plane when it is moved.
I changed the Fixe Timestep to 0.005

and I've enabled Interpolate in the Rigibody component of the object but it's still shaking.
Here's another video:
https://uploadnow.io/s/9bfc350c-7197-46c6-bb48-f5db8c2f84b7?o=t
Thank you for your feedback on these different problems.
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Comments
You're dealing with Unity's physics system here. A few things to try:
Ok, I'm going to try to look at that. In my little test, I didn't use a plan but cubes with a rather large width and the objects manage to pass through.
This is not something that would have happened in Unreal.