please do the testing on the default them and default software without third party plugins enabled.

We can't reproduce the issue on your side: https://demo.oxwall.org/video/view/23
Are you sure you have 1.8.2 and latest video plugin version?
Does this issue occur with old or newly added videos too?

I have updated all the plugins with version 1.8.2

Occurs with all video is old queli that new ones just entered 

This is third-party plugins with video input and works perfectly in https 

https://www.notonlyphotos.com/news/14/index.html ;

Have you tried this fix: https://developers.oxwall.com/forum/topic/29121 ?

I solved the problem, but for those site in https must only upload videos with links "https://www.youtube.com" by performing the modification to link from http to https padlock disappears because the preview image is not contained sure. 

the problem is in the video preview link that disappear the ssl security lock 

I did as instructed without happening.. happy wheels

Do you think this offer interested a good percentage of the business owners I approached? soap2day