The Delay node cannot be added to the StandardMacros bp in the Engine folder

The Delay node cannot be added to the StandardMacros bp in the Engine folder. However, the Delay node can be added to a new Macro Library bp and any Macro in an actor class blueprint.

1. Open QA-Game
2. In the Content Browswer, click the View Options in the bottom-right corner
3. Enable 'Show Engine Content'
4. In the Engine folder, search for StandardMacro
5. Open the StandardMacro bp
6. Press the + Macro button to create a macro (or open an existing macro)
7. Right-click in the graph & search for 'Delay' (disable Context Sensitive)
8. The Delay node can't be found
9. Enable the Palette & search for 'Delay'
10. Attempt to drag the Delay node into the graph
11. The Delay node cannot be added to the macro