Hi, I was able to reproduce this issue on 10.1.2, what version are you using?
I reported this to my dev team and they'll investigate this as a defect to be fixed in a later release.
In 10.1.2 the workaround that worked for me was:
- replace all null values in the dataset with the string "empty" (no quotes)
- edit the dataset in the dataset editor
- on upper left corner of the dataset editor click on the last icon, the one with 3 dots
- choose Configure
- There's two options under "String Settings"
- Treat as Null
- Treat as empty
6 under Treat as empty put in the string "empty" (no quotes)
7 Update
8 save the dataset and rerun the test
#Support#SupportMigration#RationalPerformanceTester