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The video upload button does not work on my site.
As Admin I can see it but nothing when I click it
as users I see a small square where the video upload button is.
For Photos, registered user see the upload button but nothing happens when we select it
Actually the problem is not JCH optimize at all. The plugin is disabled and you can confirm from the source that it is not running and the button is still not working. That confirms that the plugin is not the cause.
If you look in the javascript console you will see an error occurring in /components/com_community/assets/vendors/toolkit.min.js whenever the button is clicked. I don't know if that is jomsocial's file but I suspect it is, so check with the developer and see if they can give you further insight.