As said, here and in the trac ticket, the first field (the username) can never be empty in the current release version.
That means, that a line starting with a colon.
:HASH:SALT
is currently not valid (and may end in a crash).
Next version will also accept the empty user name field.
Therefore, a possible solution is:
replace all lines starting with the colon symbol ":" with something like "USERNAME_MISSING:"
BTW: removing lines is not a good solution, at least not if you want it to output all cracked hashes. So you should prefer fixing the lines instead of removing them, otherwise you shouldn't complain that there are only 3k lines outputted
That means, that a line starting with a colon.
:HASH:SALT
is currently not valid (and may end in a crash).
Next version will also accept the empty user name field.
Therefore, a possible solution is:
replace all lines starting with the colon symbol ":" with something like "USERNAME_MISSING:"
BTW: removing lines is not a good solution, at least not if you want it to output all cracked hashes. So you should prefer fixing the lines instead of removing them, otherwise you shouldn't complain that there are only 3k lines outputted