If the CD title contains odd characters such as "({[" I have found that the CUE Sheet and the Log files are not written. All tracks are ripped and written correctly to the HD.
Error message displayed at the end of a rip is... The folder "Album Title" doesn't exist.
RIP cue & log creation error
Re: RIP cue & log creation error
I believe you've found a bug! Can you file a bug report at https://bugs.launchpad.net/rip ?