Hi Nikko, thanks, just to let you know (and maybe you want to close this thread after this?), in the meantime I switched to the plugin Instagram Feed by Smah Balloon. This works stable, is nicely customizable and fits my needs. Or the needs of my customer, respectively. Actually I didn’t want to add another plugin and maybe I switch back once the Enfold widget works again like it used to.

Thanks and cheers.

OK I finally found it! The YouTube URL needs to be modified. For me it works this way now:

https://www.youtube.com/watch?v=ABCDEFG?rel=0″” rel=”lightbox”

instead of just

https://youtu.be/ABCDEFG

Thanks a lot anyway!