Hey, I had this exact thing happen to me and I found out how to fix it! I think the problem is that your picture is linked and not embedded. I was working on a pretty heavy project and after a bit the black box bug started happening. I assume my computer was overloaded and couldn't handle rendering the photo completely. When I embedded it, the black box went away! It looks like your project is pretty heavy as well so I hope this will fix it!
Hey, I had this exact thing happen to me and I found out how to fix it! I think the problem is that your picture is linked and not embedded. I was working on a pretty heavy project and after a bit the black box bug started happening. I assume my computer was overloaded and couldn't handle rendering the photo completely. When I embedded it, the black box went away! It looks like your project is pretty heavy as well so I hope this will fix it!
Here's how to embed files: https://helpx.adobe.com/illustrator/using/importing-artwork-files.html