I understand that the graphical command for the reindexation of databases in Utilities is broken again.
I find the solution here : Index for media files & documents not updating
I did this command in a terminal as a simple user :
tracker daemon -k
tracker daemon -s
I think that Jolla must reopen the bug (i have an X10ii under 4.2)
All pictures are reindexed. For Media it seems more long. I will see this evening or tomorrow morning.