Could you please check whether you have appmenu-gtk installed?
I have just experienced an issue with gnome-settings-daemon that became reinitializing plugins pretty fast causing layout settings to be reinitialized and this may also cause the flickering you were experiencing.
Hello,
Could you please check whether you have appmenu-gtk installed? daemon that became reinitializing plugins pretty fast causing layout settings to be reinitialized and this may also cause the flickering you were experiencing.
I have just experienced an issue with gnome-settings-
Additional question - is that 100% reproducible?