I tried making all 4 of the features the same design and that didn't help.
Acuitas, did you notice any issues with your drop-down navigation? I just clicked on your link above and see the images are cascading down the page again.
This has definitely be intermittent. The site has been acting really weird for about 5-6 days.
Another thing that I've seen is that the WP admin bar doesn't show across the top while signed in and viewing the site when this is happening. It shows in the Dashboard though. When I click on one of the drop-down nav links, it makes the page-canvas container jump up the page.
Also, no caching plugins installed. The only CDN would be Blubrry for the podcast but I don't know if there's any caching going on there. It all worked fine before the update.