Named Boundary Raster Clip

I have been using ORD's Named Boundary tool to create Civil Plan boundaries for our sheets and it seems to work well other than when we have aerial images in the background. The aerial image is a .TIF attached in an Aerial.dgn. This DGN is referenced into our sheet DGN file and then the named boundaries are created there too. Below is a screenshot of an example. The red line is where the named boundary is placed, but you can see how the aerial extends well beyond it. It seems like for the aerial reference only, it is creating a rectangle for the largest extents of the named boundary polygon. Any ideas on how we can get the aerial to also be clipped with the polygon like the other references are? (The text extends beyond the named boundary as those elements are placed in the drawing model.)

Thanks,
Ken

ORD CE 2022 R2