Some users have reported issues with clips appearing as "missing" in version 10.2.5. This usually happens if you rename project folders manually in the Finder.
A prompt should appear saying, "The current version requires macOS 11 or later, but you can download the last compatible version." Click Download . Troubleshooting Common Issues imovie 1025 dmg
As Apple updates its software, newer versions of iMovie (like 10.3 and 10.4) often require or macOS Sonoma to function. If you are running macOS 10.15.7 , version 10.2.5 is the peak of performance you can achieve without a full OS upgrade. Key Features of this Version: Some users have reported issues with clips appearing