https://bugs.kde.org/show_bug.cgi?id=507341
--- Comment #7 from Maik Qualmann <metzping...@gmail.com> --- Thanks, that's the cause and should have been fixed in digiKam-8.7.0 shortly before release: QObject::connect: Cannot queue arguments of type 'MLPipelinePackageNotify::Ptr' (Make sure 'MLPipelinePackageNotify::Ptr' is registered using qRegisterMetaType().) This was the commit: https://invent.kde.org/graphics/digikam/-/commit/2f2a37d6dc8be3af9c2944be25aef11c2504f343 Are you really using digiKam-8.7.0 release? We may need to register the type somewhere else. Maik -- You are receiving this mail because: You are watching all bug changes.