I made a post over in another thread about how quickly things can change during a patch week…
As a good example of this, it seems like Game Masters may be able to assist with this quest chain now. I see that you have a reopened ticket in queue so please let that sit open and don’t close it.
As for the issue appearing Hostile to some Horde NPCs - I haven’t been able to track down any open investigations for that (doesn’t mean they aren’t happening, I just haven’t found them yet). If you run across specific NPCs, let me know which ones. That info might help me narrow my search.