The timer freezes halfway through. Solution: The file may be corrupted. Re-download or use a different MP4 encoder. Also, check your computer's RAM.
Import the MP4 file as a video media item.
Open your presentation software (ProPresenter, EasyWorship, PowerPoint, or MediaShout).
Save the file to an easy-to-find folder on your presentation computer (e.g., Desktop > "Worship Timers").