I had exactly the same problem as Riverrover. All normal till landed when then the airplane started acting against my controls.
With HawkMoth9135 suggestion I entered the Assistance options and indeed, they were marked to Easy, so the co-pilot was
taking control of the aircraft once landed. I changed to TRUE TO LIFE assistance and made some small adjustments in some of the
sub items to make my life bit softer, and started the Cessna 152 for a ride. Once landed, bingo, it obeyed my taxi controls.
Thanks for the suggestion HawkMoth9135.