The 'Wait for Movies to Complete' flag has had its behavior reversed. Previously when you had the flag set to true, it would wait for any intro movies to complete before loading the level. Now it seems to be reversed where leaving the boolean unchecked waits for movies to complete, and checking it actually skips intro movies.
Yes, this behavior does not occur in the 4.14.3 - 3249277 binary release.
1. Download and Open attached project.
2. Packaged for Win 64 or Play in Standalone.
3. Notice how the Intro Movie is skipped.
4. Go to Project Settings > Movies and uncheck 'Wait for Movies to Complete'
5. Repeat step 2.
Outcome Intro movie completes playback and level loads.
Expected Intro movie behaves as it does now, and skips the movie once the level has been loaded.
Head over to the existing AnswerHub thread and let us know what's up.