Same thing here. Unit is only a few months old. It should be sturdier since so many games involve head movement. I did not buy mine in a store buy directly from Oculus, so I don't know what to do. I am so bummed.
There is a design
problem with either a Ribbon Cable or contacts inside the Strap on a runner
that makes contact in the Strap! Unfortunately you will have to go
through the long winded RMA process and be asked have you checked this, that
and everything else when there is clearly a problem inside the Strap!!
There will be more
People having this same problem in the future unless they come up with a proper
fix!!! My unit is going back but I can see this happening again unless they
address the problem! If it goes again after repair ill just use my Bluetooth
Headphones as I’ve been doing for the last Week till it goes off for repair.