Imported audio file cuts off prematurely in iMovie
Here's an odd issue: I have three 5-minute-long audio files that I want to import into iMovie, over which I will overlay some graphics for the final video. The first two audio files import fine. The third one appears to import OK, but I can only get it to play up to the, say, three minute mark, and then it "cuts off."
Things I've tried:
Dragging out the right side of the imported audio file in iMovie to make sure it is playing all the way to the end of the file (it is)
Creating a new test iMovie project and importing the file into that to see if the same issue occurs. It does; the imported audio only plays up to the three minute mark and then cuts off.
Opening the file in QuickTime player to make sure the entire five minutes of audio is present. It is, and the entire file plays in QuickTime player.
Trimming off the first minute and a half of the audio in QuickTime Player, re-saving it as a new file, and importing that into iMovie. Again, it only imports up to the what was formerly the three minute mark but no more.
I'm out of ideas. Anything else to try?
Mac mini, macOS 13.3