We just fixed an issue with the YouTube homepage not loading correctly – if you were seeing an empty/blank homepage or only a few videos showing up there, please refresh your browser or app and it should be working now. Thanks for all of your reports and your patience!
Hmm, video processing shouldn't take longer than a few hours at most (and may be longer for higher res formats). Here's a few tips for videos stuck in upload too: https://goo.gl/gH99rS . Hope this helps.