I have the same problem and for me, a dialog box saying that amarokcollectionscanner had crashed appeared. Here is the bug report (it actually crashed twice, but I suppose it is because of the same reason and won't post the second one).
** Attachment added: "collectionscanner crash report" http://librarian.launchpad.net/4942187/_usr_lib_amarok_amarokcollectionscanner.1000.crash -- Problem with libtag https://launchpad.net/bugs/58613 -- kubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
