The SteamVR Beta has been updated with the following changes.

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 rare hang in the Lighthouse driver that could happen when plugging/unplugging USB connected controllers.
  
• Do not load the same driver multiple times even if it has been registered multiple times (mainly affects people developing drivers).
  

SteamVR Home:

• Correctly handle the case where a held entity is killed.
  
• Fixed colorcorrection error when compiling map.