Branch: Binary
Build version: 4.2.1
Repro Steps:
- Open the Unreal Editor
- Go to Edit → Project Settings
- Go to the Movies section
- Add an element to the Startup Movies
- Select a .mp4 movie
- Click “Copy”
- Close the Window
- Click on the Launch button, and you won’t see the video
Attachments:
This is the .mp4 movie I used for testing. I used other movies, but none works.