Images disappear while in the Customizer

Do you have any browser extensions running that might be affecting it? (since this is a pre-4.5 issue I’ll move this thread to the troubleshooting section though, just so we can keep tabs on things properly we’ll continue to investigate with you ?? )

Yes, Marius, stay with me, don’t leave me alone with this strange situation ??
I turned off extension what I used, so this not affected on this. Also, I tried to any different settings in Safari and Security last time, without any change.

The picture is always there, just it’s not showed, as height is somehow zero. I tried many themes, nothing changes, the same result.

I also tried fresh installation on different server/environment with a different stack, and the issue persist.
Any idea what setting in Safari can cause this? I tried to change almost anything there.
If somebody can point me in the right direction what can cause this can help. I have no any idea. Maybe somebody who uses Safari can try it too? Important is that it happened while you in Customizer and clicking/navigating to the different page and come back to blog page, then images disappear.

I have similar issue in customiser. In my case, I’m using Masonry script, which seems to be affecting it. Interestingly, if I insert a sample item using an external image link just like below:

<?php if ( is_customize_preview() ) : ?>
  <img src="https://wikipedia.org/any-sample-image/" />
<?php endif; ?>

Then this image shows without a problem, while all other post-retrieved images do not. As @peter Cralen said, image is always there, the height is set to zero. So far, if I disable Masonry script, the image shows up again. It happens only in Safari, all other browser seem to be unaffected.