Cache Breaks Feed

Hello we have two websites on MS Azure and the feed is acting strangely on both. Disabling WP Super Cache fixes the issue. The first time the feed is viewed, it looks fine. Reloading the feed however returns a blank page. Appending a query string to the feed bypasses the cache and behaves the same: it works on first load, but reloads are blank. Also when I login to the site, the feed works fine. It’s only messed up for “guests”. We updated WordPress and all our plugins. We first noticed this a couple months ago. Since it hasn’t been fixed yet, here’s our bug report. Thanks.

• This topic was modified 6 years, 7 months ago by adamlach86.
• This topic was modified 6 years, 7 months ago by adamlach86.

The page I need help with: [log in to see the link]