For a couple of mp4 videos, the thumbnail is not generated.
File link - https://data-us.cometchat.io/2059436ea2ab5c4d/media/1666090270_1489437543_5ca0d915c10ff0e78d2d51f49114e650.mp4
Thumbnail link - https://data-us.cometchat.io/2059436ea2ab5c4d/media/thumbnails/0e05a9a9_f817_4e6b_9d1a_f4b9120e7032_small.jpg
If you see the thumbnail URL opens a blank page on the browser.
We were wondering what could be the reason for this.
Other details -
App ID - 2059436ea2ab5c4d