OK this is another situation where the porch beams (CC Lintels) need to tie into the exterior wall at a fixed location. See A & B
The overhang & roof need to be at the edge of the beam as shown. Just because the soffit & fascias need to match.
Columns need to center under the beam.
This makes the floor not in the correct place for the column bases as shown in the picture.
I guess you could drag the foundation out to make the floor larger, then the tile does not co