A video will not play
Black frames, endless shimmer, or sound without picture.
Updated 25 September 2026
- A shimmer means the video is still being processed or downloaded; give it a few seconds.
- Only the video on screen plays; scroll so it is fully visible.
- Videos start muted in the feed. Tap the speaker.
- Low Power Mode and Low Data Mode reduce video quality and can pause autoplay.
- Very old iPhones cannot decode some high-resolution videos; the app falls back to a lower quality when one exists.
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