Lesson disappearing from folder & other issues

Hello Carlotta! Thanks for reaching out.

I understand a lesson keeps disappearing from your folder. Does the issue occur specifically for this particular lesson? Are you the owner/author of that lesson?

I would like you to try this and see if you'll be able to replicate the behavior, duplicate the lesson, and then add that duplicate to your folder. See if the lesson stays in the folder or if it disappears similar to the original one.

Let me know how it goes.