Thanks - has something changed in the last few weeks? This used to work seamlessly in the past. I would just upload to Youtube, checking the 3d box and everything worked. But that is no longer the case. I don't see a date on that article so not sure how it relates.
This is how it now appears on Youtube: https://www.youtube.com/watch?v=oGM4C94VIKU&t=2s
and this is how it used to appear: https://www.youtube.com/watch?v=ZW1pAUzSMUI
Same process in stitching the source video, same process editing in VideoPad, same process in uploading to Youtube, but a very different result
thanks