In my project, we have around 250 outgoing responses to the virtualized service. We captured those responses by using "Data Source Loop" but, the outgoing responses are saved as "Response1, Response ...
During the recording of parameterized transactions, the responses are created with names matching the parameters entries. When doing a data driven test the injected parameters are included in the naming of responses (see attached).
I would recommend starting the recording with no stored responses.
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Additionally, we would encourage you to submit an enhancement request.