interesting, I haven't seen that. When you say you can't open it.. what exactly happens? Do you see the initial splash screen, or does it just go back to the main Oculus home?
I did have something similar with a development build that I never found out what was happening... but seemed to be concurrent with my headset taking a rather long time to upgrade from v28 to v29. It sounds simple, but does a headset reboot help?