Random Posts have "broken" image links; post page breaks/loses styl upon display

Hello, first off thank you for taking the time to read this.
I run a blog and just today I noticed that apparently random posts, upon loading, will not display the images but rather a broken image link. Upon refreshing the page, it looks like the style or something is removed – the page “breaks”, whereas upon initially loading the page it is displayed correctly, with the exception of the images not loading (perhaps this part is a caching issue or something – regardless, images are not loading).

I have disabled plugins, and temporarily installed the WP 2015 theme – the issue still persisted. Does anyone have any idea what could be going on or how to fix this? Thank you so much.

Here is a link to one of the affected posts: http://urlgone.com/c7fe1d/
and here is one to a post functioning correctly: http://urlgone.com/8b9517/

Apologies for running your through urlgone’s ad.