I've run into this issue a few times and I'm wondering if I'm doing something wrong when creating new curves from cross sections.

This model has just been imported and placed using the Import/Export tools, so has not been influenced/rotated by any manual alignments. I then immediately created a cross section using the CAD Editor tools. See "cross section" picture for the settings I used.

The attached "correct" picture shows the CAD models native curves and their correct nominals. The "wrong" picture is the curves created from the cross section "pick" and "add" curves dialog. The features should just be rotated 90° but otherwise share the same nominals, but as you can see there are minor differences to the size and location of the feature/curve, so I end up having to tweak my nominals. Am I doing something wrong? Why aren't the nominals right?