First off, this is only the .tlog with these values.
A .bin file with the RCin and RCout values logged would be preferred.
When you say All motors calibrated numerous times and also before flight on the field.
What are referring to? Do you mean you calibrated the ESC’s at the field?
As the motors run when doing the motor test it doesn’t seem the PixHawk has a faulty output.
The only other thing I can think of is that you are being too cautious in your attempt to take off.
It can be a bit daunting for the first flight, but even the big octo’s will tip on their very first lift off.
You need to arm then ‘jump’ the copter into the air.
Not too hard, just aim for a metre high to get it out of ground effect.
To play it safe, when on first lift off and the copter wants to tip, say forward, I will back off and then raise the throttle again with some back elevator added.
Usually the copter will want to tip backwards then.
So I know the controls are working in the correct sense.
I usually check the roll that way as well.
When I am happy that I have control I will give the throttle just enough to get it light on its feet, then a little ‘punch’ to clear the ground quickly to a metre high.