The SteamVR Beta has been updated with the following changes. This build is a candidate to hotfix the full release. It will likely be released to everyone within the next few days.

If you encounter issues with this update, please post in the SteamVR Bug Report forum. If possible, please include a system report to aid in tracking down your issue.

SteamVR:

• Fix a case where attempting to activate one driver and failing could block a later driver from being able to succeed. Specific examples include driver_ivry (which always activates an HMD and looks for a potential wireless connection for 5 seconds) blocking Vive or Oculus HMDs, and driver_lighthouse in cases where a user has both Vive + Rift and switches between them by moving the HDMI connection.
• Fix a case during application launch where an app transition can be aborted immediately after it was started.
• Fix for not being able to complete Room Setup with a gamepad plugged in