(In reply to comment #4) The problem appears to be with WxWidgets 2.8.12 I've "downgraded" to WxWidgets 2.8.10 and although there is still a short pause before the menu refreshes, the menu reappears after a fraction of a second.
(In reply to comment #4)
The problem appears to be with WxWidgets 2.8.12
I've "downgraded" to WxWidgets 2.8.10 and although there is still a short pause
before the menu refreshes, the menu reappears after a fraction of a second.