Finally bluetooth is working. After downloading SP2RC2 and waiting around 40 mins for an install and one reboot later, bluetooth works!
I am using a stereo sony bluetooth receiver and all the functions work, Play, Stop, Forward etc.
I also didn’t come across any issues with missing drivers like some others.
Although the uninstall will be a pain when the official SP2 is released (you need to uninstall RC2 to install the official SP2) if you are in need of working bluetooth devices I would recommend installing this ASAP.