I followed the procedure above, it did say it was formatting the hard drive, so I lost my settings and recordings, but for me that was ok. about an hour later, everything was working which it was not before, I did this after trying both "CLEARMYBOX" and "CLEARMYBOX 2" Friday night and waiting 24 hours, this did not fix any of the issues I and others are having with the CE builds, but the reset seems to have done the trick in getting stuff working again.
Also to add, immediately after doing this reset I did go back online and send a refresh to my receiver which fixes my loss of 4K channels, and I had to switch "Native" on and than off again in the "DISPLAY" settings to correct my PQ issues.
After doing all of this and waiting about an hour to two hours, the On Demand, Scores, Remote DVR, etc all started working for the first time with the CE build.
Nice, but that's very extreme, something most people probably shouldn't try as it will delete everything, including your recordings, which is something I really don't want to do, at some point though, I will do this, but first I have to pull some of my favorite recordings onto my computer and then do the full reset, because of course this will most likely resolve most issues that have accumulated over time and make everything super fast again, like when you first get your DVR.