Unable to Virtualize Json RR pairs-VSI created as <i><unknown-op>

Document ID : KB000124011
Last Modified Date : 28/12/2018
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When tried to create virtual service using Json RR Pairs, VSI is created as <i><unknown-op>
All support DevTest environments
Request file might be corrupted 
The reason you show an "<unknown-op>" in the recording  is that URI path or operation name in the supplied request might have a space or some characters after it. 

Compare it with a working Request file.