Ok, this post explains what happens when a mismatched dbkey is used. It also explains how to clean up data tables (although it is NOT recommended, tedious, and error prone). But, perhaps may help. bwa-mem does not map to entire reference genome
You can view all of your data tables under the “Admin” menu to check if you have duplicates or not.
Other posts with the tag “data-manager” have descriptions/troubleshooting for other situations and may be helpful to review.