Lightbox is not working

Probably it has been asked before, but couldn’t found a working answer for my case

Any idea why the image in the following topic is not rendering the lightbox?

It is weird, I was able to fix it by making this simple change…

Original: ![Screenshot|690x387](upload://2RvoZjGiEvNfw0HHQEqaC6JAgZa.png)
Fixed: ![Screenshot|690x387,100%](upload://2RvoZjGiEvNfw0HHQEqaC6JAgZa.png)

It seems like lightbox doesn’t render if the % property is missing (?)

No, that is not the case.