Keynote Video Not Playing in Presentation

How to fix it

// try these in order, the most common fix is first

1. FIX 1Test the file in QuickTime Player

   Copy steps
   1. 01Open the original video in QuickTime Player
   2. 02If it doesn't play, convert it to H.264 MP4/MOV (QuickTime: File > Export As) and insert it again
   Did this fix it? Yes No

2. FIX 2Embed a local video instead of YouTube

   Copy steps
   1. 01Download or obtain the video file you have rights to
   2. 02Drag it onto the slide instead of using a YouTube link
   Did this fix it? Yes No

3. FIX 3Restart the slideshow on external displays

   Copy steps
   1. 01Press Esc to exit the slideshow
   2. 02Play it again from the slide with the video
   3. 03If audio is going through HDMI, set the Mac's sound output to its own speakers in System Settings > Sound
   Did this fix it? Yes No

4. FIX 4Use ProRes 4444 for transparent video

   Copy steps
   1. 01Re-export transparent videos as Apple ProRes 4444
   2. 02Replace the video on the slide
   Did this fix it? Yes No

Symptoms

The video frame is blank or frozen during the slideshow, the movie doesn't start automatically, plays choppy, or disappears from an exported movie. Embedded YouTube videos show a playback error.

Why it happens

• C-01Video codec Keynote can't play
• C-02YouTube blocks playback of the embedded video
• C-03Audio routed through HDMI on an external display
• C-04Videos with alpha channels in unsupported formats
• C-05Bug when exporting a recorded slideshow to movie

// this guide also covers

• keynote video not playing
• keynote movie won't play
• keynote youtube video not playing
• keynote video choppy
• keynote video not playing on projector

Other Apple Keynote errors

• Keynote Not Opening or Crashing on Mac
• Keynote Export to PowerPoint Broken (Fonts & Animations)
• Keynote Presenter Display Not Working on External Monitor
• Keynote Remote Not Working on iPhone
• Keynote Not Syncing With iCloud Between Mac and iPad
• Keynote Collaboration Not Working
• Keynote Presentation Can't Be Opened (Too Old or Damaged)
• Keynote Slow and Lagging With Large Presentations