blinking menu before going off
In many apps, here inkscape is used in my screencast, sometime when opening a menu item that must open a contextual window, like 'File' -> 'Open file', at the time the window appears the menu 'File' must go. In this issue the menu blinks very fast before going. This issue is difficult to track since it does not happen always and not in every program. By disabling the compositor, this problem does not seem to happen. This has been tested in a new user account.
OS : slackware64 15.0 xfdesktop version : 4.16.0
steps to reproduce this issue: open for example mousepad and do 'File' -> 'Open'. Just before the contextual window to select a file will appears, the Menu 'File' leaves by blinking a short time. It blinks longer time with inkscape.
screencast : http://0x0.st/H1MP.mkv