Means that the format basically works, but the viewer/browser doesn’t support the animation extension … or more likely the animation got erroneously re-encoded and the extension was lost.
In the past it looked like some platforms generally move away from supporting animated images and converted them to videos or static images instead. Videos give you more control over the playback. animations either stop when they are done or loop for a fixed/infinite time. Videos can stop, pause, rewind etc.
But this is about animations and not images.
Means that the format basically works, but the viewer/browser doesn’t support the animation extension … or more likely the animation got erroneously re-encoded and the extension was lost.
In the past it looked like some platforms generally move away from supporting animated images and converted them to videos or static images instead. Videos give you more control over the playback. animations either stop when they are done or loop for a fixed/infinite time. Videos can stop, pause, rewind etc.