[bug] Language level disappears

In a lesson I want to share, the editor is adamant to remove the lesson level, and then refusing to share, because the lesson must have a level before you share. It does not matter in what order I do it, the level disappears as if none was applied.

As I intend to share it, this is the lesson address: Login - LingQ

Thanks for reporting, we will investigate the issue.

I have this problem for videos imported with the Youtube tool. Any manual imported video can be shared no problem. Lesson looks great, can’t wait to watch it.
Edit: can’t update the levels after saving the video. Must select the level before the initial save.