UserAgent: Mozilla/5.0 (X11; CrOS x86_64 8172.60.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36
Platform: 8172.60.0 (Official Build) stable-channel gandof

Steps to reproduce the problem:
1. Enable bluetooth, pair bluetooth headphones with Chromebook
2. Bluetooth Add-New device panel keeps showing LG HBS1100 BLE and then changing it to LG HBS1100
3. When added for first time after waiting for it to change to LG HBS1100, headphones say paired but never say connected afterwards (turn off automatically after several minutes since no connection is established nor does the Chromebook panel say its connected fully)
4. Afterwards, they never pair/connect and Bluetooth panel states the headphones are LG HBS1100 BLE

What is the expected behavior?
One time, on a May 2016 build, they worked flawlessly. They never worked afterwards.

What went wrong?
Bluetooth headphones wont fully connect after one successful try on a May 2016 build.

Did this work before? Yes May 2016 build

Chrome version: 51.0.2704.103  Channel: stable
OS Version: 8172.60.0
Flash Version: Shockwave Flash 22.0 r0

I know that ChromeOS has had a lasting issue with headphones, but they worked before and stopped working on the same build