After updating EF with version 1.4.13, I look the following message box just with opening the library.
An unexpected error has occured
(ValueError: NSInvalidArgumentException -***-
[NSMenu removeAllItems]: unrecognized selector
sent to instance 0x25d0cc0)
This message always appears when opening window at first time and disappears at next relaunching & opening.
Now, any trouble might be seen now about function of EF, and any collapse of current data.