rss being validated as html

I think it might have something to do with WP Super Cache.

Go to the plugin’s option page and try adding /?feed=rss2 to the list of URLs not cached.

well I’m pretty stumped, I disabled the caching of the feeds, and I think you’re right because if I clear my cache than the feeds do validate.

So all I can assume is it isn’t properly deactivating the cache. Here’s a screen shot I took of the wp-supercache, do you see anything that should allow the rss feed to recache?

https://www.blogsmonroe.com/backyard/blogcache.JPG

The other thing I don’t understand is that we have a pretty large variety of blogs on our server, they are all up to date, about half of them running the latest version of wordpress, but we’re only having this problem with like one or two other blogs.

So all I can assume is it isn't properly deactivating the cache.
Here's a screen shot I took of the wp-supercache, do you see
anything that should allow the rss feed to recache?

That looks right to me.

Are you using any plugins that redirect or alter your feeds?

For example, I tried to validate one of your post feeds (https://www.blogsmonroe.com/backyard/?feed=rss2&p=1516) and it shows the same error message as your blog’s feed (https://www.blogsmonroe.com/backyard/?feed=rss2). I then tried to subscribe via Google Reader to the post feed and instead the blog’s feed was subscribed to.

yeah I’m really not sure whats causing it other than wp-supercache. We run maybe 30 or so blogs, but we only have two blogs with this error, and they don’t have any plugins activated that are unique to them only.

I’ve set it so that wp-supercache won’t cache the feeds, but it still seems to.

The reason I suspect wp-supercache (even though it’s working fine on nearly 30 other blogs) is because when I delete the cache, I’m able to validate the RSS feeds.

Have any suggestions? I’m completely stumped on this one.