As I have mentioned in another thread I’ve had issues with the program guide (and I’ve only been using the dvr for like a week) and it finding recordings as well and yeah my solution is to delete the dvr and re-add it.
Yesterday I went to do the same thing and Plex could not find my HD Prime . . . I got frustrated for a few mins but as part of my troubleshooting I decided to unplug the HD Prime and what do you know!! Plex found it - Issue solved.
I’m sure Plex is working on various different issues . . . Sure what I do to get it running again isn’t optimal but the dvr is awesome. I can replace my TiVo’s and not have to worry about running out of space or deleting programs that I haven’t had a chance to watch yet.