Did some software updates to the Windows side of the Mac via Bootcamp the other day and now whenever my backup drive is plugged in to my computer (always is) the Mac will boot into Windows by default. I checked the startup disk and reset them back to Mac, but it doesn't matter. If the drive is connected it will now always boot in to windows by default. If I unplug the drive and start up the machine it goes in to Mac just fine. Not exactly sure wtf happened