Confirming the message "Failed to allocate BVRAM mirror". I haven't seen ML in action yet, however I don't see any of the features working.
EDIT: talking about 2013/07/27 build.
EDIT2: Also, the set button doesn't do anything anymore at all.
EDIT: talking about 2013/07/27 build.
EDIT2: Also, the set button doesn't do anything anymore at all.