Roku Direct Publisher (RDP) is a great product and its free, but it has its limits and drawback, one of them is that it takes hours for the new content to update, it's very hard to troubleshoot and you will be spending a lot of time doing it.
Maybe it's time to switch to a more robust solution:
1. OTTfeed.com platform to manage your content feed (works with Vimeo Pro).
2. Our custom Roku app that is similar to RDP with a lot of extra features.
To get more info or to request a demo go to https://ottfeed.com/