Emily M. hmm yeah that might be a possibility - hard to say without a read-only link but another thing to look at is the lazy load and making sure its set for eager loads with page - since these are scrolling off canvas. If its at the top of the page, its less likely the issue - but if its further down the page, most likely the issue.
If you want to send a long a read only or DM it to me, I can poke around more though.