My first landing with jeehell was an autoland

the approch was very stable and the landing smooth.

But presently the AP disengages during touch down.

This is not correct. The AP will stay ON the whole landing roll until you switch it off manually.
The AP will maintain centerline during landing roll.

And when you use the tiller to leave the runway, the AP will try to steer back to the centerline (als long as he gets LOC signal - otherwise AP will go off)


Christian