When you run a load test, NeoLoad does not keep the data from requests/responses for better performances.

However, you have multiple ways to get that information.

You can run a test in debug mode. In that case, you will have exactly the same information like for a user validation.

Since it consumes lot's of resources you should not do that for a real load test but for debugging purpose only.

Another way is to use javascript action in order to log variable values used during a load test.
This data will be written in each load generator logs displayed in the "logs" tab in your test result.

You can log lot's information using javascript so i suggest you to look at our documentation for more information.

See NeoLoad Javascript API under Appendix section.