@nguyencongtuan
I changed the effect & style from FADE IN to SPINNER, but I still have the overlay on the videos for Vimeo and YouTube.
Maybe W3 Total Cache or Smush are interfering with a3 Lazy Load?
See a list of all plugins installed: https://imgur.com/a/s8X0PR1
@a3rev
Turning off Lazy Load for iFrame and video worked and the videos seem to be displayed without the grey overlay. Thank you so much!
Thank you so much George!
I followed up with the plugin support in the specific forum. This was very helpful! Thanks a bunch.