Something strange is happening here with Joplin. I sync my notes and notebooks between my computer (Linux) and my Android device, via Mega and FolderSync.
On the mobile device, however, there are 3 notebooks (with its respective notes) that are totally hidden.
I don't know why, and if I search for content and notes inside those notebooks, the Joplin's search find them and i can so read everything. But they don't appear in that "tree view": I can only acess them through the search.
Anyone has some idea about how to solve this, please?