Geezy

I am trying to make a meter plate for a 5 gang box. Im very new to the space and am still learning. Cura is filling in some holes while leaving some holes on my print when I slice the stl file. I used the boolean modifier in blender for the 4 holes that are not being cut out. The two holes correctly sliced were from a previous design I found online that I modified. I also used the boolean modifier for the meter box cutouts. Thanks for the help in advance! Meter Plate.stl