Ok I confirm I found the SOLUTION for users using the moza AB9 ffb base. Please make sure you select the Froogfoot default profile in the MOZA AB9 Base app aka Moza Cockpit app.
You don't need to hold the grip anymore, as once the test has started, eventually the stick will move to the left, and center.
Test was completed and trim works as well as dampener OFF light is now unlit.
Remember, fly safe!
I will mention this in my video
AC
HIP Games's post in AFCS failure on cold start was marked as the answer