Our channel has been working great since we launched (about 6 months ago) Now all of a sudden Roku cannot ingest our new videos, we get an error: No valid items were found in the feed 65 items have error: Thumbnail could not be downloaded. We are a wordpress site ibtv.us and use WP Smart plugin. Went though support and all is good with WP Smart and our cdn host. Our internet provider is Comcast and I get nowhere with their support. Anyone familiar with this error and can help give some guidance? Any help would be appreciated. Thank you all.