This issue has been closed as 'Won't Fix' due to an extended period of time without updates. If this issue is important to you please let us know by posting on the AnswerHub or UDN, and Epic will re-open the ticket for further review.
Unchecking the Actor Hidden in Game checkbox is not allowing a Note or an Ambient Sound be visible when played in the editor
1. Open the QAGame Editor
2. In the Modes section, drag a Note or an ambient sound into the Editor
3. In the details panel, uncheck the Actor Hidden in Game checkbox under the Rendering section.
4. Be sure to add text if you enter note.
5. In the Toolbar, select Play.
The Note or Ambient sound is not being shown in the Level when PIE
The Note or Ambient sound should be visible when the Actor Hidden in Game box is unchecked.
Head over to the existingAnswerHub thread and let us know what's up.