Images not displacing on mobile view and disappearing in designer


I have a problem :smiley: Unfortunately, some of my images, that i do place in the designer wont appear on the mobile Version. They are placed in a PopUp Modal. The desktop Version works fine. I already tried setting the images to 100% width and so on but nothing helped.

I found someone who has the same Problem as me for a better description: Images not displaying on mobile view

Unfortunately, i do not have a Read only link.
Thanks in advance.