Hi again,

I downloaded the uploaded file to check all was well.  I  don't understand why, but the downloaded file's name had changed and at first I couldn't get it to behave like the original (or indeed do anything at all!).  I had to manually remane the file back to its original name, which is:

Olympic - 2 shots.m415A77DB.omf

I've downloaded and tested the clip.  I get all the same results in MC 3.5.  Same error on attempted playback.  I can export and re-import the file with no issues.

That's good - in a way.  As I say, go back to v3.05 and it'll play just fine.