Thread 1 "qgis" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffdf2d05c0 (LWP 11317)]
0x00007ffff3b3e684 in QMetaCallEvent::placeMetaCall(QObject*) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
(gdb) where
#0  0x00007ffff3b3e684 in QMetaCallEvent::placeMetaCall(QObject*) ()
    at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007ffff1b7ddcb in QgsChunkedEntity::startJob() (this=0x55555ce00700)
    at /home/webmaster/dev/cpp/QGIS/src/3d/chunks/qgschunkedentity_p.cpp:382
#2  0x00007ffff1b7d11d in QgsChunkedEntity::update(QgsChunkedEntity::SceneState const&) (this=0x55555ce00700, state=...)
    at /home/webmaster/dev/cpp/QGIS/src/3d/chunks/qgschunkedentity_p.cpp:169
#3  0x00007ffff1b43505 in Qgs3DMapScene::updateScene() (this=0x7fff6c015070)
    at /home/webmaster/dev/cpp/QGIS/src/3d/qgs3dmapscene.cpp:255
#4  0x00007ffff1b43410 in Qgs3DMapScene::onCameraChanged()
    (this=0x7fff6c015070)
    at /home/webmaster/dev/cpp/QGIS/src/3d/qgs3dmapscene.cpp:238
#5  0x00007ffff1b4e125 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (Qgs3DMapScene::*)()>::call(void (Qgs3DMapScene::*)(), Qgs3DMapScene*, void**)
    (f=(void (Qgs3DMapScene::*)(class Qgs3DMapScene * const)) 0x7ffff1b433f8 <Qgs3DMapScene::onCameraChanged()>, o=0x7fff6c015070, arg=0x7fffffffc5f0)
    at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:134
#6  0x00007ffff1b4d825 in QtPrivate::FunctionPointer<void (Qgs3DMapScene::*)()>::call<QtPrivate::List<>, void>(void (Qgs3DMapScene::*)(), Qgs3DMapScene*, void**)
    (f=(void (Qgs3DMapScene::*)(class Qgs3DMapScene * const)) 0x7ffff1b433f8 <Qgs3DMapScene::onCameraChanged()>, o=0x7fff6c015070, arg=0x7fffffffc5f0)