Can’t log in to manage published maps, post, etc. Kicks back (AUTH_BGS_CLIENT_ERROR) upon proper password entry. Improper password works as intended and reloads saying it was the wrong password/username.
At some points an error window will pop up saying lost blizzard services or something to that extent as well, although that may be unrelated.
Edit: Seems you need to select your region prior to attempting to log in (in the Manage Published Flies window, to the left of the log-in button). It no longer selects the region automatically or the cache to what region you normally connect to got wiped.