Photography

When I view your post, which apparently includes a link to the image, I see this:

https://postimg.cc/4YRpwDfK]

I see the image in your post. BUT when I view my own post, sharing the image, I see this:

https://postimg.cc/FYb36TzT]

I don't see the image, I only see the links to the image.

Is this normal? Is this just how DU works, when you share links to your own images you don't see the images in your own post, you only see the links, but everyone else sees the images?

Thanks for your help, I'm just trying to figure out how this works!