The black transition with stars in iMovie is corrupted for my computer.
The black transition with stars is corrupted. It shows a distorted picture instead of black with stars. But it's OK when I place a title on it. I am working on a duplicate project. The original doesn't have this problem. Even when I click for a fresh black-with-stars transition. It seems odd: the problem exists on the duplicate but not on the original in the Timeline. Do you know the how to rectify it, and what's the cause? It happened shortly after I used an external track pad to replace the original broken one. I wonder if it's because of the external track pad. See attachment:
iMovie '11, Mac OS X (10.7.5)