If the window is set with a 'Symbolic' floor plan display, then it may not match the location of the frame in 3D when used in complex profile walls.
This may help to illustrate the problem (or it may just confuse it more).
I still haven't worked out a solution.
Try adjusting the opening reference line position in the complex profile or use 'Projected with Overhead' as the floor plan display for the window.
One of the forum moderators.
Versions 6.5 to 25
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Dell Precision 3510 - i7 6820HQ @ 2.70GHz, 16GB RAM, AMD FirePro W5130M, Windows 10