Why a photo or video is blocked or warned about
The length and shape checks that run before you publish.
The page reads each file's length and shape. Errors block publishing; warnings only inform where limits differ by account.
| Platform | Blocked when |
|---|---|
| Threads | Video over 5 minutes |
| Instagram Story | Video over 60 seconds |
| Instagram photo | Outside 4:5 to 1.91:1 |
| Any platform | File over 500 MB, or empty or damaged |
Warnings cover TikTok videos over 10 minutes, X videos over 2:20, and Reels that are not 9:16.
