UE4Editor mouse over popup UI glitch

I builded from source of 4.10.2 release from github. Often when I run UE4Editor I experience UI glitch with popups on mouse over event (sometimes I do not experience this behavior. In that case everything run quite smoothly).

Hardware spec info: (download htm file and open it in browser)
Video demonstrating the glitch: https://youtu.be/92Ou-Nsc6Jc

I’m not sure where a problem is.
Default Editor settings are set.

Xubuntu 14.04 x64 (using GTK), using kernel


I forgot to mention important fact that I use i3wm instead of xfwm. But note that I haven’t had any issues like that (applications like Blender, Gimp etc… run always without a problem) until I installed UE4Editor.

Do you have any hints, please?

UE4 runs correct with compositor switched on in Xfce. Go to your window manager settings and turn it on. That might help.

Thank you for your comment! Please see updated question. I’m sorry, I forgot to mention that I dont use Xfce window manager.

Well then you need a compositor :smiley:

Thanks! :slight_smile: