Does this truss have two or three bearing points?
It is unlikely that a residential truss has a load bearing center point unless it was carrying another truss load and being used as a girder. That doesn't appear to be the case. It appears that the truss was too low once it spanned the high ceiling area and the clearance was elevated to create a vaulted ceiling at the top of the stairwell. That truss appears to only have two load bearing points. Trusses are also marked at the load points when manufactured. I would still call the architect to verify.