I have beta access for my account, but I also like keeping my PTR folder updated. So I run the PTR launcher and it was like "can't update PTR until Beta Launcher gets updated". Ooookay... The beta launcher automatically popped up and had the message "optimizing". Urgh. After that finally completed, it then proceeded to require downloading ~4.2GB. At least three hours later... thing finishes up. But I'm stuck with the beta launcher still. Where's my PTR launcher? I go back to the PTR folder itself --
It's a complete. Copy of. My. Beta. Folder. /wrist
Hope that clears up some of the confusion.