Prime tower enabled disregards object

[jwhils 2]

When I enable the prime tower in 4.4.1 it is shrinking the build volume by several mms around the entire perimeter of the build plate (grey shadow). I don't see where I can adjust this setting to stop this from happening or why this would be necessary given the placement of of the tower I set. If the perimeter on the right is good, why does Cura shrink the build area in front, back, and left? Using ooze shield with 2mm separation still works just fine on this project. Any suggestions would be welcomed. I built the part to fit to maximize the plate and I may be able to rotate this project slightly, but this doesn't seem to make any sense.