Yeah I have the same problem. It's caused by updating to the latest versions of FCP X and Compressor. It's a VB's problem and they are aware of it but don't know when it will be fixed. In the meantime I've been re-exporting my files using MPEG Streamclip and that solves the problem but unfortunately that software strips out the metadata so I've been using a CSV at VB's for the past couple of weeks.