[Charles Simonson]

I thought I had tried this previously, but I guess not. Almost immediately after posting this thread, I went back and tried uninstalling Calibrated Software’s MXFImport plugin. After doing that and rebooting, I am now able to export from the SR Viewer app into a QT reference file and import this into FCX. So everything appears to be working well. Hopefully this will be a tip for anyone else who may encounter such a scenario in the future!