Hello.
I am running Linux Mint 18.3 and have Unreal 4.19.1 and it starts and works. The 3D viewport have good performance. Building shaders is fast and work perfectly. However, if I want to drag and drop a texture into the shader it suddenly is horrible slow, like I have to wait several seconds for the mouse position to update and wait with the mouse of the destination a couple of sec before I drop or it might miss.
Does anyone know what might cause this ? The GUI slowdown is so horrible i literally can not work like this.