I don’t, but I’m missing the 1st part of a clip that is. A friend found this in the FCP manual.
Important: To ingest (or reingest) a spanned clip as a single media file, it is recommended that you mount all of the P2 volumes necessary for the clip. Mounting separate P2 volumes at different times may cause Final Cut Pro to transfer only portions of a P2 clip.
Bob Lampel
TV Director/Producer