Failed test results caching.
After a test run a tests was showing in the report as fail. After rerunning tests several times the same failed test message keeps showing up with the same time stamp.
Did it really run the subsequent times with a response? I noticed something similar happening when a Token was required for authentication and the Token timed out. Clicking send would not update the Response Fields. Possibly it should clear out all the response fields before each send but this doesn't appear to be happening. Check the Log, it will give more information. In my case it was "Connection refused" and then I knew I had to get a new Token.