Hi -- reporting a bug that seems to cause a crash/hang/breaking of ML when exposure override and the bulb timer are both enabled:
- install a fresh copy of the current "Nightly-.2016Oct05.100D101.zip"
- open ML menu, enable Expo. Override, enable bulb timer, exit ML menu
- enable LV, adjust shutter speed to BULB
- disable LV, enable LV
Camera hangs with black screen; can't be turned off or on, requires battery removal.
It seems to be the combination of exposure override, bulb timer, BULB shutter speed, and using live view that causes it. If you have trouble reproducing, just adjust the settings as described above and go in and out of LV a few times... it happens pretty reliably.