Hey 41N1!
The way the game has released content/patches over the years, you'll find stuff may bottleneck from time to time, and its something we're looking into smoothening out down the road.
the game is fun and the characthers are interesting + the issue with blair appearing early is definetly not common, and can be fixed with just putting them after the blaire appearance quest is finished (like how rae ch. 10 is locked before finishing daywalkers)
didn't encounter any bugs outside of blair's sequence breaks(if you can even call them bugs)