1.  Create a platform media source.
2.  Assign a media file to the windows platform.
3.  Create a media player.
4.  Try to play the platform media source created earlier.
Result: The media source fails to play and shows a toast and prints to the log.
Expected Result: The media source plays properly.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-40709 in the post.
| 0 | 
| Component | Media Framework | 
|---|---|
| Affects Versions | 4.14 | 
| Target Fix | 4.15 | 
| Created | Jan 16, 2017 | 
|---|---|
| Resolved | Jan 17, 2017 | 
| Updated | Apr 27, 2018 |