thank you for your clear answer, Steven. I will try this next time for sure.

I am searching for an easier way to add my captions in stead of doing it one by one per image. I'm using the wp plugin from juicebox, the pro version. Is there an xml file to edit? if so...where?

i thought i followed your manual step by step but i must have done it wrong. I did it again, now from the Classic wp editor  in stead of the Gutenberg and yes! it works;)  It would help extra if your manual stated also that you will NOT see anything but the juicebox tag in the code editor. thanks!

hello,
i am a newby, using juicebox light gallery in a wp page. Everything is installed local, so I cannot show the site online. I made a screenshot to show the problem. The gallery works fine, but the images are also shown underneath the gallery, one per line, so I dont mean as thumbnails. I cannot find why this happens.