We have just patched the hammer bug for the Index headset and are working on another patch to be pushed ASAP (eg Climbing bug).
Please continue to use the bug report form here
https://docs.google.com/forms/d/e/1FAIpQLSdATC2DVCbsJKvr2yekc1pYo7tvs0Xm-xT6PO39-UrulGE8Xw/viewform
Alternatively email us at [email protected]