https://bugs.kde.org/show_bug.cgi?id=502576
--- Comment #3 from Stefano Crocco <stefano.cro...@alice.it> --- I'd never used QConcatenateTablesProxyModel before, either. However, I don't think using it with models which a variable number of rows is the cause of the crash: I tried a test program where some QStringListModels were concatenated in a QConcatenateTablesProxyModel and shown in a QComboBox. Using a QTimer I removed some rows from them, but nothing happened. I think it's only when using it with a QWebEngineDesktopMediaRequest which causes the crash. I created a Qt bug report about this issue at https://bugreports.qt.io/browse/QTBUG-136111. Let's see what they say -- You are receiving this mail because: You are watching all bug changes.