I built Atomic for the first time today to try it out, but immediately ran into a depth issue in the 3D view. I'm running the newest version on Ubuntu 16.04 LTS with the open source Radeon driver.
This is a screencap of the character and physics example to show what I mean.
This happens from all camera orientations, though sometimes it flashes between that and correct depth when the camera moves.
However, it works completely fine when I run the game. It's just an issue in the editor and makes it really hard to do anything.