The orientation of a tertiary datum that is derived from targets does not meet one of the following criteria:
- 1-point plane constrains a translational degree of freedom (DOF) and its normal vector is parallel to that DOF.
- 1-point plane constrains a rotational DOF and the plane is parallel to the axis of rotation.
If it does not meet either of these conditions, the DRF is considered a failed object, and the additional message Failed objects in the model is displayed.
To resolve the issue, redefine the datum reference frame or redefine the datum from targets.