Mac OS X 10.11.5 with BB 2.2.5 Usually in past versions, when you don't have internet connection, a window will pop up and say not connected to server. That still happens but before it would ask to save your game. Not happening now. It just completely shuts down without the option to save. If you didn't save your last bit of work, then you don't have an option there. It's minor as I mini save all the time but sometimes...!
That's not cool at all. It didn't happen to me until now, but I'm anyway no fan of this feature. I really think we should be able to work offline as well.
Something very similar happened to me the other day, was playing around with a new concept, got a good bit of work done, hadn't saved yet and my home router got a little flakey which of course caused BB to loose contact with the server. It gave me a pop to save, I clicked Yes, BB shutdown but did not save.. hours lost. :-(