Imgur now blocks several VPNs and have issues loading embedded previews in several fediverse platforms. So instead of using imgur, you could use one of the following alternatives for uploading your images.
https://postimages.org/
https://imgbox.com/
https://imgbb.com/
https://www.imagebam.com/
Awesome find! I’ll give it a shot and recommend it to our community. Thanks!
Edit: Indeed, it works!
Hey, to embed properly you need to use the direct link ending with .mp4. Otherwise, only a thumbnail of the video will be shown. You will find the direct link by clicking on the dropdown that appears when you hover the video at imgchest.com. Here is a proper embed of your video.
Embed