If you customize the export settings in a Motion project, the application may unexpectedly quit the next time you open the project and try to export it again.
To make exporting easier, Motion includes a variety of export presets. You can customize the included export presets or create new presets to suit your specific needs. If you customize the settings by clicking "Options" and then changing any parameter before exporting your project, Motion may not be able to read the project file. The next time you try to export a QuickTime movie from your Motion project or change its advanced QuickTime compression or audio settings, Motion may unexpectedly quit.
This can happen with Motion 1 or 2 in Mac OS X 10.3 or 10.4. This issue doesn't occur if you use the existing presets or a custom preset that you previously created.
Update to Motion 2.0.1 to address this issue.
If this issue does occur and you're not able to update, you can correct it by editing the project file: