I have a dialog which implements a help "About" action. It contains a tabbed widget (QTabWidget) with six pages, each of which contains a different QTextBrowser widget displaying HTML text with numerous HREF links on each page.
On the first page, when a link is clicked, the default browser is opened and the correct site is displayed.
However, when I click on a link on any other page, the entire text browser widget is blanked out! The widgets remain blank when switching tabs.
After closing the dialog and reopening it, the pages are shown normally.
This happens in Qt Designer in form preview as well as at runtime.