Playing video in the Editor's Media Player on a Mac results in a degradation in quality with some noticeable banding present

Playing a video on a Mac using the Editor's Media Player results in the video appearing to have had its data compressed, and with an apparent decrease in quality. In particular, there is noticeable banding on some color transitions.

On Windows, a video playing in the Editor's Media Player has comparable quality to the same video playing in an external media player.

1. Obtain the LoadingScreen.mp4 file from ShooterGame.
2. Play the LoadingScreen.mp4 file.
   • Note the quality of the video, in particular the color transitions in the background.
3. Create a new Blank Blueprint project.
4. Add a new Media Player asset to the project.
5. Import the LoadingScreen.mp4 file into the project.
6. Open the new Media Player asset.
7. Double-click the LoadingScreen file in the Media Player in order to start playing it.

RESULT:
The video playing in the Editor's Media Player looks like its data has been compressed. There is definite banding visible in the background color transitions. See the attached image files (both were taken at the same time stamp, one in the Editor Media Player, one in the QuickTime Media Player).

EXPECTED:
The video playing in the Editor's Media Player shows the same quality as the same video playing in an external media player (such as QuickTime).