Android O Beta stopped connecting to my car bluetooth automatically


I have a bluetooth dongle in my car which my Pixel running the O beta from I/O stopped connecting to automatically when I get in the car. It worked flawlessly in Nougat. The strange thing is that Android Auto launches like it is connected to bluetooth (I have it set to autolaunch when connecting to my car bluetooth), but it actually never connects to the bluetooth adapter. I have to go in and manually connect, which works every time. I have tried reinstalling Android Auto, as well as delete and re-pair my bluetooth adapter, neither of which worked. Anyone else have issues with this or know of a workaround?