The other day when the patch hit , my shortcuts to the game was not pointing to the right spot any longer. After some searching the .exe’s moved to _retail folder. Ok… Fixed it., though I had to SEARCH around like a fool for the new WoW location… Then when I was done playing for the night the launcher kept prompting over and over and over to make changes to update the game. The next night the launcher.exe was corrupted so I had to download it again and it was fixed. Now every day it wants to do some sort of update and eventually finishes and get to the Play button. Today it kept giving me an error and after 10+ tries it finally prompted me to make changes to hard drive and worked properly.
TL;DR… Ever since this patch hit the patching/update process has been horrible. It used to be so flawless. What happened?!! Also your lack of communication about the new file structure sucks. How about letting us know about these kind of important changes in the future? I didn’t see a single thing about this major change to the file structure in the patch notes but if I missed it then I apologize lol 
EDIT: I see a blue post in this thread explaining the change to the file structure and other people having this issue… Why isn’t it stickied?