Video on podcast not working

I have been using the Apple Podcast app on my iPhone 5. Ever since the upgrade to IOS 7, the videopodcasts I am subscribed to are not showing any video, they just give the audio. When I download the podcast, I can already tell that the size of the podcast is smaller (e.g. 50 MB instead of usual 500 MB). I do get the audio when I play. I have tried deleting the podcast and subscribing again through iTunes, but that doesn't work. Anyone have any tips how I can solve this?