Thank you for your bug report. When getting the 'not responding' dialog could you get a backtrace as described in https://wiki.ubuntu.com/Backtrace#Already_running_programs ? It might give us some clue of where it's stuck...
Thank you for your bug report. When getting the 'not responding' dialog could you get a backtrace as described in https:/ /wiki.ubuntu. com/Backtrace# Already_ running_ programs ? It might give us some clue of where it's stuck...