Extrude Cut Issue / Selecting Closed Regions

Hello,

I have been dealing with an issue with the Extrude Cut tool. I am unable to select enclosed sketch regions to extrude cut through solid geometry. The behavior is extremely inconsistent. and there are at least 3 different cases, none of which make sense. I have included example pictures below (one picture has shaded sketch regions shown)

 



These cases I have identified are: 

1)

  • Create Solid geometry
  • Create shown sketch
  • While the sketch is active, enable the extrude cut tool in the feature toolbar
  • attempt to select the region formed by the intersection of the two circles
  • Result: I am only able to select the two contours formed by the individual circles

2) 

  • Create Solid geometry
  • create shown sketch
  • exit sketch
  • enable the extrude cut tool in the feature toolbar (sketch is automatically selected for feature)
  • All sketch contours are highlighted
  • Result: SOMETIMES I am only able to select the two contours formed by the individual circles, other times I can select regions

3) 

  • Create Solid geometry
  • create shown sketch
  • exit sketch and make sure it is deselected
  • enable the extrude cut tool in the feature toolbar
  • click on the sketch (an existing sketch to use for the feature)
  • Sketch region is highlighted
  • Result: SOMETIMES I am only able to select the two contours formed by the individual circles, other times I can select regions

 

I am using Solidworks Connected 2025. I have used several versions of Solidworks in the past, though none extremely recently, however, this functionality or lack thereof is driving me insane, and I do not remember ever having to deal with this.