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!
You can now tap the progress bar to skip forward/backward again! You'll need to update the app (if you haven't already) to get the fix. Let us know if you still see otherwise and we will look into it.