Comment 13 for bug 1473504

The only way we'll be able to track this bug down is by getting a good backtrace and reproducing the error: http://www.mixxx.org/wiki/doku.php/creating_backtraces

If you could reinstall 1.12 briefly and help us get a trace that would be a huge help, otherwise we have no way to fix the bug because none of us can reproduce the problem.