User is able to move objects with Static Mobility on Begin Play

The user is able to move objects with static mobility on Event Begin Play, which shouldn't be allowed.

1. Open QAGame in editor.
2. Open the level blueprint.
3. Add a reference to the Floor static mesh to the graph.
4. Drag off the reference and add a Set Actor Location node.
5. Set the New Location vector to something where a change is noticeable (I used 0, 0, 500).
6. Wire the Begin Play node to the Set Actor Location.
7. Compile.
8. Simulate in viewport.

RESULT:

The Floor moves.

EXPECTED:

The Floor is static, so it shouldn't move.