Boolean difference removing wrong geometry I am trying to subtract a shallow bowl-like shape from this basic trough. The subtraction should only serve to round out the top.


When I enable the modifier it deletes the internal geometry of the trough even though none of it is intersecting with the cutter.





I have enabled backface culling to show the removal of the internal geometry.

I have checked normals, manifoldness, and made sure that I don't have any colinear plains. any help would be appreciated.

Edit: added picture of the cutter.
I ended up finding that changing the offset on my solidify modifier fixed the problem. I am still not sure why this happened but that is my fix.