UE4 4.8 & 4.9 UI Unclickable in Ubuntu

I’m having difficulty getting UE4Editor to behave properly in Ubuntu 14.04. I’ve compiled both 4.8 and 4.9 source, ran the editor, and constantly ran into issues with the entire stage locking up when I try to drag and place an actor. Nothing in the stage is selectable and none of the buttons are clickable. The rest of the editor functions fine, its only the stage that malfunctions.

I’m running a Nvidia 750M GPU with 346.82 proprietary drivers. I’m beginning to thing I may have a display driver issue since this is happening in both 4.8 and 4.9. Maybe I did something wrong in compiling the source? I followed the tutorial directly.