Oculus Rift users who are accustomed to staring into black boxes to view gorgeous virtual worlds are presently looking into those black boxes and seeing nothing at all. The Oculus Runtime Service is not working, which is preventing people from using their headsets. Posters on the official Oculus forums have shared screenshots of an error message stating as much.
We are aware of and actively investigating an issue impacting ability to access Rift software. Our teams apologize for any inconvenience this may be causing you and appreciate your patience while we work on a resolution. We'll share more updates here as we have them. Thanks.
Although Oculus has not publicly stated the cause of the issue, multiple forum posters have shared screenshots and information showing that the culprit is an expired certificate. A couple of forum users stated that, specifically, the error lies with the OculusAppFramework.dll.
Oculus responded to our questions by stating that the company doesn’t have anything further to share for now beyond what it’s already posted publicly, but it appears that an update to fix the problem may be coming soon. (No, we don’t know what “soon” means in this case.)