When using the WordPress fetch_feed function in conjunction with W3TC page caching, the cached pages aren't built correctly. The issues are weird and inconsistant, but sometimes posts are missing, and sometimes random stuff shows up where the feed_fetch data should be displayed. If I turn off page caching in W3TC everything works fine.
Perhaps there's a way for me to tell W3TC to handle the fetch_feed caching but I have no idea how.
Below is a link to the site but I can't allow this bug to exist in production.