Have looked at the other threads and cannot seem to find anything helpful. Is there a way to fix this? I’ve already tried switching to beta and back.
Nothing yet 
I’ve the same problem
There’s a thread about this already. Here’s the latest Blizz reply: Launching BFA Launches Classic/BFA Reinstalling Itself - #26 by Drakuloth
I made the mistake of restarting my PC and now I’m downloading BFA all over again.