Created attachment 142161 [details] backtrace I have Noto Color Emoji installed system wide (my distribution packages it). I installed the font "TwemojiMozilla" locally (using right click -> install in Dolphin). This font is shipped with Firefox and is available on my system under /usr/lib/firefox/fonts/TwemojiMozilla.ttf Now, whenever opening the emoji selector, I get a segfault. This happens whether using the keyboard shortcut or running the ibus-ui-emojier-plasma command directly. I have attached the backtrace I got from gdb. SOFTWARE/OS VERSIONS Linux: Arch Linux x86_64 (kernel 5.14.5) KDE Plasma Version: 5.22.5 KDE Frameworks Version: 5.86.0 Qt Version: 5.15.2
Pasting inline for searchability: #0 0x00007ffff6821d03 in QTextEngine::shapeText(int) const () at /usr/lib/libQt5Gui.so.5 #1 0x00007ffff6833d01 in QTextLine::layout_helper(int) () at /usr/lib/libQt5Gui.so.5 #2 0x00007ffff7c91d1d in QQuickTextPrivate::setLineGeometry(QTextLine&, double, double&) () at /usr/lib/libQt5Quick.so.5 #3 0x00007ffff7c92b2a in QQuickTextPrivate::setupTextLayout(double*) () at /usr/lib/libQt5Quick.so.5 #4 0x00007ffff7c94c3d in QQuickTextPrivate::updateSize() () at /usr/lib/libQt5Quick.so.5 #5 0x00007ffff7c95e9b in QQuickTextPrivate::updateLayout() () at /usr/lib/libQt5Quick.so.5 #6 0x00007ffff7c97854 in QQuickText::geometryChanged(QRectF const&, QRectF const&) () at /usr/lib/libQt5Quick.so.5 #7 0x00007ffff024140b in QQuickLabel::geometryChanged(QRectF const&, QRectF const&) () at /usr/lib/libQt5QuickTemplates2.so.5 #8 0x00007ffff7c5e24c in QQuickItem::setSize(QSizeF const&) () at /usr/lib/libQt5Quick.so.5 #9 0x00007ffff7c492bc in () at /usr/lib/libQt5Quick.so.5 #10 0x00007ffff7c4c201 in () at /usr/lib/libQt5Quick.so.5 #11 0x00007ffff7c69da3 in QQuickItem::componentComplete() () at /usr/lib/libQt5Quick.so.5 #12 0x00007ffff7c9737b in QQuickText::componentComplete() () at /usr/lib/libQt5Quick.so.5 #13 0x00007ffff02412a4 in QQuickLabel::componentComplete() () at /usr/lib/libQt5QuickTemplates2.so.5 #14 0x00007ffff7888c74 in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at /usr/lib/libQt5Qml.so.5 #15 0x00007ffff781d847 in QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt&) () at /usr/lib/libQt5Qml.so.5 #16 0x00007ffff781de5e in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () at /usr/lib/libQt5Qml.so.5 #17 0x00007ffff5c40d35 in () at /usr/lib/libQt5QmlModels.so.5 #18 0x00007ffff7d2cbc6 in () at /usr/lib/libQt5Quick.so.5 #19 0x00007ffff7d1e6fe in () at /usr/lib/libQt5Quick.so.5 #20 0x00007ffff7d2dc70 in () at /usr/lib/libQt5Quick.so.5 #21 0x00007ffff7d2f0fb in () at /usr/lib/libQt5Quick.so.5 #22 0x00007ffff7c7c896 in QQuickWindowPrivate::polishItems() () at /usr/lib/libQt5Quick.so.5 #23 0x00007ffff7c1bcb7 in () at /usr/lib/libQt5Quick.so.5 #24 0x00007ffff7c1d22d in () at /usr/lib/libQt5Quick.so.5 #25 0x00007ffff6734635 in QWindow::event(QEvent*) () at /usr/lib/libQt5Gui.so.5 #26 0x00007ffff6e26d62 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5 #27 0x00007ffff634f3ba in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5 #28 0x00007ffff67295d0 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () at /usr/lib/libQt5Gui.so.5 #29 0x00007ffff66fd7e5 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5 #30 0x00007ffff10e2fcc in () at /usr/lib/libQt5XcbQpa.so.5 #31 0x00007ffff4c8710c in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0 #32 0x00007ffff4cdaba9 in () at /usr/lib/libglib-2.0.so.0 #33 0x00007ffff4c84871 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0 #34 0x00007ffff63a7fe6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #35 0x00007ffff634dd2c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5 #36 0x00007ffff6356294 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5 #37 0x0000555555557919 in () #38 0x00007ffff5cdbb25 in __libc_start_main () at /usr/lib/libc.so.6 #39 0x0000555555557a6e in () It doesn't look like any KDE code is involved here. Can you file a bug report with Qt at bugreports.qt.io/? Thanks!