Observed behaviour
The thumbnail remains a blur. If you send more than one copy of the video into a message the thumbnails appear just fine.
Reproduction steps
- Download this sample video: stayin_alive.mp4
- Attach one copy of this video into a message.
- Send the message.
Build information
canary build 718 (9cc2c6a), Electron 41.2.2, Windows 11 10.0.26200 (x64), desktop canary 0.0.205, Electron 41.2.2, Chrome 146.0.7680.188, Node 24.14.1, locale en-GB
Platform
Windows
Details
Expected behaviour
The sole video should be able to embed its thumbnail.