Using the standard settings for the Dual v3 on both Cura 2.6.69 and Cura 3.2.20, we are able to get the fan shroud on the E1 extruder into the wiping pad and homing button. We can do this by printing with the E2 extruder (selected as the active extruder for the print) as close as we can to the left side of the print bed. Even with a brim or skirt the issue persists, as the brim and skirt can print into the grayed out safety buffer. Also printing the skirt or brim on a print with the E1 extruder as the active extruder, but having the E2 extruder do the brim or skirt results in the same issue.
Another thing that was discovered was the ability to completely remove the grey safety buffer by setting the Build Plate Adhesion Type to none and turning Generate Support off, allowing the E1 extruder to also run the fan shroud into the homing button and wiper pad.