The log looks good.
How long did you wait before you clicked stop?
It looks as thought the command to start logging was sent fine, the controller responded with 1024 0's as expected.
But in the following runtime data the T-Log flag was never set to indicate the controller had filled the page. If that never gets set, you are dependent on the TunerStudio timeout, after 10 seconds TunerStudio will read the page to get what ever is there. I don't see that timeout read in the log. It seems it was stopped.
Try turning on the power to the car, connect with TS and start the composite logger. Then don't be in any rush to crank, wait 10-15 seconds. Then try cranking, when you stop cranking wait a good 15 seconds before stopping the logger for the timeout read to pull what is there.