I had a N/A on one of my test runs too. I was clicking through the counters then pressed 'save all' so this may have affected the lap reporting perhaps?
I noticed the new car testing lap time system came online today, but after the first test run, the resulting time is simply "N/A". Advice on what to change for the car still comes through though.
This happens when the driver doesn't complete the lap (e.g. if there is a 0% condition part on the car) or the lap isn't simulated quickly enough to be read back in. We'll be improving clarity of the feedback in the next days.
We can resolve the latter issue entirely without too much trouble, I expect to have that done tomorrow.
CEO & CTO