OK, here’s what I’ve found. The 1080p video uploaded, and is working fine. I was able to pick a thumbnail picture, however, I can’t locate a upload custom thumbnail option. I got everything to work and it’s published. Also, every video I publish ends up as the channel trailer even though I’m not clicking the option.
As for the 480p version. I get an error.
Beyond this, the large icon screen in manage videos goes to the Full30 main page, even though it displays the correct URL for the video.
If I click notify subscribers. I get an 500-web site error once I click Email.
Hope this helps you narrow down the places to look. Let me know if you want me to try anything else.