Issue with multisite

Hi,
I recently swithced to multisite, and I’m working on site2.

Plugin works well on main site, but on site2 (subdomain) if activated on a widget, featured image from post disappear.

It was network activated, and in other threads I’ve read this caused some issues, so I’ve network de-activated it, but issue continues.

I’ve deleted and re-installed, but nothing cahanged.

I’m using Avada 3.7.2, so “Use jQuery(window).load hook” option.” is selected.

Note that on main site it works well.

yoganride.com
english.yoganride.com

Any idea?

https://wordpress.org/plugins/q2w3-fixed-widget/