When I open some feeds on the subscription tab, I keep seeing episodes from other feeds interlaced with the list for the current feed. The more episodes are available for a particular feed, the more likely it is to have episodes from other feeds mixed in. The scrambled episodes are generally toward the bottom of the list.
The cross-listed episodes also list under their proper feed name, and download into the correct folder, not into the folder for the cross-listed feed. Unchecking the interlaced episode also unchecks it in the proper list for its feed.
Some of the mixed-up episodes are from feeds I've followed in the past but have now removed. When Juice runs through a download cycle, it recreates the download folders for those removed feeds.
I tried removing every single feed from Juice and reentering them all, but when I added the feeds back in the same ones came up scrambled, apparently with the same mislisted episodes--including the ones from removed feeds.