Application: korgac (4.14.10)
KDE Platform Version: 4.14.35
Qt Version: 4.8.6
Operating System: Linux 4.4.82-desktop-1.mga5 x86_64
Distribution: "Mageia 5"

-- Information about the crash:
Since the last update (yesterday, August 29. 2017) of Mageia 5.1, every time I add an event to my google synchronized calendar, Kontakt crashes .

The crash can be reproduced every time.

-- Backtrace:
Application: KOrganizer Reminder Daemon (korgac), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[KCrash Handler]
#5  0x00007f73f9d3aea0 in KCalCore::IncidenceBase::uid() const () at /lib64/libkcalcore.so.4
#6  0x00007f73fac8bc2b in Akonadi::CalendarBasePrivate::handleUidChange(Akonadi::Item const&, Akonadi::Item const&, QString const&) () at /lib64/libakonadi-calendar.so.4
#7  0x00007f73fac98148 in Akonadi::ETMCalendarPrivate::updateItem(Akonadi::Item const&) () at /lib64/libakonadi-calendar.so.4
#8  0x00007f73fac9850a in Akonadi::ETMCalendarPrivate::onDataChangedInFilteredModel(QModelIndex const&, QModelIndex const&) () at /lib64/libakonadi-calendar.so.4
#9  0x00007f73fac9a67d in Akonadi::ETMCalendarPrivate::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /lib64/libakonadi-calendar.so.4
#10 0x00007f73f78cf88a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /lib64/libQtCore.so.4
#11 0x00007f73f7918fd7 in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&) () at /lib64/libQtCore.so.4
#12 0x00007f73f71cde73 in QSortFilterProxyModelPrivate::_q_sourceDataChanged(QModelIndex const&, QModelIndex const&) () at /lib64/libQtGui.so.4
#13 0x00007f73f78cf88a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /lib64/libQtCore.so.4
#14 0x00007f73f7918fd7 in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&) () at /lib64/libQtCore.so.4
#15 0x00007f73f71cde73 in QSortFilterProxyModelPrivate::_q_sourceDataChanged(QModelIndex const&, QModelIndex const&) () at /lib64/libQtGui.so.4
#16 0x00007f73f78cf88a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /lib64/libQtCore.so.4
#17 0x00007f73f7918fd7 in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&) () at /lib64/libQtCore.so.4
#18 0x00007f73f917cd78 in KSelectionProxyModelPrivate::sourceDataChanged(QModelIndex const&, QModelIndex const&) () at /lib64/libkdeui.so.5
#19 0x00007f73f78cf88a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /lib64/libQtCore.so.4
#20 0x00007f73f7918fd7 in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&) () at /lib64/libQtCore.so.4
#21 0x00007f73fa0bb92c in Akonadi::EntityTreeModelPrivate::dataChanged(QModelIndex const&, QModelIndex const&) () at /lib64/libakonadi-kde.so.4
#22 0x00007f73fa0c4b3a in Akonadi::EntityTreeModelPrivate::monitoredItemChanged(Akonadi::Item const&, QSet<QByteArray> const&) () at /lib64/libakonadi-kde.so.4
#23 0x00007f73f78cf88a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /lib64/libQtCore.so.4
#24 0x00007f73fa1046a7 in Akonadi::Monitor::itemChanged(Akonadi::Item const&, QSet<QByteArray> const&) () at /lib64/libakonadi-kde.so.4
#25 0x00007f73fa10edf8 in Akonadi::MonitorPrivate::emitItemsNotification(Akonadi::NotificationMessageV3 const&, QList<Akonadi::Item> const&, Akonadi::Collection const&, Akonadi::Collection const&) () at /lib64/libakonadi-kde.so.4
#26 0x00007f73fa11034c in Akonadi::MonitorPrivate::emitNotification(Akonadi::NotificationMessageV3 const&) () at /lib64/libakonadi-kde.so.4
#27 0x00007f73fa10c061 in Akonadi::MonitorPrivate::flushPipeline() () at /lib64/libakonadi-kde.so.4
#28 0x00007f73fa10c269 in Akonadi::MonitorPrivate::dataAvailable() () at /lib64/libakonadi-kde.so.4
#29 0x00007f73f78cf88a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /lib64/libQtCore.so.4
#30 0x00007f73fa06552a in Akonadi::EntityListCache<Akonadi::Item, Akonadi::ItemFetchJob, Akonadi::ItemFetchScope>::processResult(KJob*) () at /lib64/libakonadi-kde.so.4
#31 0x00007f73f78cf88a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /lib64/libQtCore.so.4
#32 0x00007f73f7fd0b52 in KJob::result(KJob*) () at /lib64/libkdecore.so.5
#33 0x00007f73f7fd0b90 in KJob::emitResult() () at /lib64/libkdecore.so.5
#34 0x00007f73f78d3d61 in QObject::event(QEvent*) () at /lib64/libQtCore.so.4
#35 0x00007f73f6c4f79c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQtGui.so.4
#36 0x00007f73f6c55e40 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQtGui.so.4
#37 0x00007f73f919640a in KApplication::notify(QObject*, QEvent*) () at /lib64/libkdeui.so.5
#38 0x00007f73f78bbcad in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQtCore.so.4
#39 0x00007f73f78bebe1 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQtCore.so.4
#40 0x00007f73f78e8cae in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQtCore.so.4
#41 0x00007f73efd26c6d in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#42 0x00007f73efd26f18 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#43 0x00007f73efd26fbc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#44 0x00007f73f78e8e1e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#45 0x00007f73f6ced4f6 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtGui.so.4
#46 0x00007f73f78ba931 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#47 0x00007f73f78bac45 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#48 0x00007f73f78bfe59 in QCoreApplication::exec() () at /lib64/libQtCore.so.4
#49 0x00000000004113af in main ()

Reported using DrKonqi