We have a published channel and the feed status shows it has not updated for 20 hours, about that same time we published a updated version that is under review. We did not know that the channel is locked and content cannot be changed, is there anyway to stop the channel from being public til the updated version is passed? and no remove channel doesn't do anything.
I too have been waiting almost a month for my new version to be accepted for publishing. I don't think there is a backlog. I think that the DP team is working on now features and fixes that are supposed to be release sometime in July (fingers crossed) and just not focusing on the channels waiting in the pipe line.
My app has 300 videos. On each refresh (every six hours) there is a new problem in the feed status that wasn't there before as well as the old errors are gone. Ultimately, there are a number of problems with DP that the Roku Development team are working out. We need to be either patient and wait for the issues to be ironed out (soon I hope) or revert back to the SDK version of our channels.