Hi there,
I have the latest version of LibreELEC running on RPi3. I started from a clean install, then restored the backup from the original RPi B+ it was running on previously, Of course a few addons were incompatible and LibreELEC on RPi3 properly detected so.
However, I'm not sure when, but Kodi stopped updating the "Recently viewed" list a while ago.
Was it a built-in function of Kodi, or a plugin that left this orphaned folder hanging at the top of the "Movies" pane?