I thought of that. Removing the QCEQ from SONAR Platinum is pretty hard to do. IIRC, there was a time duckbar had an option to remove it but doing so resulted in stability problems. The QCEQ is not optional. While it looks like a regular PC module, it is more integrated into the DAW.
It may also be an issue with per-track EQ projects from 8.5 or older.
More info from the OP would be nice.