Video won’t play or shows a blank area
Try these first:
- Refresh the page
- Check your internet connection
- Try a different browser — Chrome and Edge work best
- Disable browser extensions (ad blockers and privacy extensions can block video embeds)
- Clear your browser cache and cookies
YouTube videos
YouTube content is embedded directly in Juno. Common issues:
- Network blocking: If your company’s network or firewall blocks
youtube.com, embedded videos won’t load. Try on a different network (e.g. mobile data) or contact your IT team.
- Video unavailable: The video may have been set to private or removed by the creator. Contact your admin to update the content.
- Aspect ratio: YouTube videos display in a fixed 16:9 ratio. Black bars may appear if the original video has a different aspect ratio — this is normal.
Uploaded videos
Videos uploaded directly to Juno (not from YouTube or Vimeo):
- Still processing: Recently uploaded videos may take a few minutes to become available. If the video was just added, wait and try again.
- Blank player: If the video area appears but nothing plays, the file may be in a format your browser doesn’t support. Contact your admin.
- Slow loading: Large video files on a slow connection may take time to buffer. Wait for the loading indicator to complete.
Video controls
Juno’s video player supports:
| Control | What it does |
|---|
| Play/Pause | Start or stop playback |
| Seek bar | Jump to any point in the video |
| Volume | Adjust volume or mute |
| Playback speed | Choose 0.5x, 1x, 1.25x, 1.5x, or 2x |
| Fullscreen | Expand to fill your screen |
SCORM content not loading
SCORM content (interactive e-learning modules) opens in an embedded viewer within Juno.
Common issues:
- Blank frame: The embedded viewer may fail to load. Try refreshing the page or clearing your browser cache.
- “No valid SCORM file found”: The uploaded package has an error. Contact your admin — they may need to re-upload the SCORM file.
- Progress not saving: SCORM packages control their own completion tracking. If you’ve finished the module but Juno still shows it as incomplete, the package didn’t send a completion signal. Contact your admin to manually mark it complete.
Recording playback issues
If your organization uses Juno’s built-in video recording feature:
- Recordings are saved in WebM format. Most modern browsers support this, but Safari on older macOS versions may not.
- If you can’t play back a recording, try opening it in Chrome.
- Download failures may show a “format not supported” message — this is a browser limitation, not a Juno error.
Last modified on March 26, 2026
