In a specific site collection I lost a
Site Assets library. I don't know what happened, the library just disappeared. In fact, SharePoint doesn't allow me to recreate a library with this same name, so I think the library content still is there, somewhere.
I'd like to know why the library has disappeared and how to recreate it, if needed.
"SharePoint Server Publishing Infrastructure" and
"Wiki Page Home Page" features are activated in Site Settings