--- a/ui/gtk/container.c Tue Jun 03 20:14:22 2025 +0200 +++ b/ui/gtk/container.c Thu Jun 05 19:29:04 2025 +0200 @@ -740,6 +740,7 @@ UIWIDGET ui_tabview_create(UiObject* obj, UiTabViewArgs *args) { UiGtkTabView *data = malloc(sizeof(UiGtkTabView)); + memset(data, 0, sizeof(UiGtkTabView)); data->margin = args->margin; data->spacing = args->spacing; data->columnspacing = args->columnspacing;