Bluetooth connectivity bug

Hello,
There appears to be a bug when connecting to the APM via a bluetooth serial bridge.
The error "Connect Failed" appears shortly after clicking connect however I can get Mission Planner to connect if power up the bluetooth device and then waiting ~15seconds after clicking "connect". Perhaps a timing issue with Mission Planner.
For reference i use Windows 7 Ultimate 64bit

My bluetooth hardware connects fine with QGroundControl V2.0 and Droidplanner when using a tablet.

Further details as per this thread http://www.diydrones.com/forum/topics/mission-planner-over-hk-bluetooth.

Start by reproducing the Bluetooth serial bridge connection on Windows 7, comparing an immediate connection attempt with powering the device first and waiting about 15 seconds. Use the linked DIY Drones thread and the successful QGroundControl and Droidplanner behavior as references; done means Mission Planner connects reliably without the manual delay.

Written by the indexing model from the issue text.