This document has not been formally reviewed for accuracy and is provided "as is" for your convenience.
The whole error string is "ExtractResultArg failure: object reference not set to an instance of an object". Solution: A hot fix is attached (LR2020GA.zip)for this issue. Please download & decompress it first, and then, put & replace the same_name file in "%LoadRunner%\bin" folder. For more detail info, please see the external Document (ExtractResultArg failure Details.docx).