diff options
| -rw-r--r-- | src/widgets/widgets/qmainwindowlayout.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/widgets/widgets/qmainwindowlayout.cpp b/src/widgets/widgets/qmainwindowlayout.cpp index 87c33932a8d..a1a4cfc2ce0 100644 --- a/src/widgets/widgets/qmainwindowlayout.cpp +++ b/src/widgets/widgets/qmainwindowlayout.cpp @@ -2673,8 +2673,10 @@ void QMainWindowLayout::animationFinished(QWidget *widget) parentWidget()->update(layoutState.dockAreaLayout.separatorRegion()); #if QT_CONFIG(tabbar) const auto usedTabBarsCopy = usedTabBars; // list potentially modified by animations - for (QTabBar *tab_bar : usedTabBarsCopy) - tab_bar->show(); + for (QTabBar *tab_bar : usedTabBarsCopy) { + if (usedTabBars.contains(tab_bar)) // Showing a tab bar can cause another to be deleted. + tab_bar->show(); + } #endif // QT_CONFIG(tabbar) #endif // QT_CONFIG(dockwidget) } |