Yep. I confirm. The same thing here. Crash report dialog pops up, but serpentine just works and finishes the writing. Produced disks are ok.
The only thing I can add is that it happened twice in a row. Both times just before serpentine reported "Preparing recording" (under the progress bar) after "Preparing media". PS Didn't find how to say attach bug info collected by crash report tool to existing bug report or whereabouts of this info/files, possibly a god feature to be implemented on apport/Launchpad. -- [apport] serpentine crashed with AssertionError in _get_progress()" https://launchpad.net/bugs/84086 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs