When uploading videos to YouTube using Firefox, I add them to relevant playlist(s) at the same time as doing the title, description, tags etc.
However, perhaps 10-20% of the time the
Add to playlist dropdown just spins saying
Loading... and doesn't load:
(Side note: I also see behaviour when creating a playlist via that dropdown- it will be created but not appear; I do this rarely so can't say how frequently it would happen)
Other times the playlist dropdown will load and display successfully.
I've done some searches and some people suggest there is an issue if a video is unlisted, private or scheduled; but that's not the case here as can be seen from the image.
What causes the dropdown to not load the list of playlists? Is there a way to prevent it happening?