EasyBlog | Uploading Video to Post

Originally, we were attempting to post a video link from BiliBili, but its not supported.
However, creating an iframe didn't give us the option to create thumbnail for the video.

So, we figured to upload it to media via EasyBlog.
It seems like it is processing.
But after 100% it disappears.

Any idea how to get the video into the media manager?
https://drive.google.com/file/d/1IeCWb1cOPw1Z2oHZjTUpKOGJzUyYswDM/view?usp=drivesdk
https://drive.google.com/file/d/1IORfZEh0srJXMB4XCak3Qeu4kT-gY_ev/view?usp=drivesdk

Thought it was our server, so went and attempted to upload via EasySocial.
Have it in a private setup, but as you can see from images, it uploaded with EasySocial,
https://website.com/community/videos/test-upload-via-link

Any ideas why EasyBlog couldn't?

By the way, the EasyBlog post I am trying to upload this video is in draft named:

新版1对1保分课课程介绍 (Revision #1)
https://website.com/administrator/index.php?option=com_easyblog&view=composer&tmpl=component&uid=59.923&Itemid=1520