the following error is seen in VNM.out for different mhs
"Model Name is not set after re-evaluation for mh"
Release : 21.2
One of the duplicate testhosts will have no name associated, hence the error, model name not set.
The test host which is having empty/no name will have remained in SSDB but it is of no use and can be ignored.
Engineering is working on a fix, but there is no ETA for the fix at this time.