After Toad crashes or is unexpectedly shut down, connection history and passwords are lost when re-opening Toad. (4316286)

After Toad crashes or is unexpectedly shut down, when Toad is restarted, the connection information is gone.  All the saved connections and their passwords are no longer there.

A message may be given, noting that the "connectionspwds.ini file was invalid and it cannot be shared among different users for security reasons". This may or may not be followed by other messages regarding settings. Toad's connection window is blank and does not list out the previous connection history. 

It appears the file may have become corrupt.

Can this be prevented? Can the information be recovered?