Roger Sanger reported a problem with the main world being one orbit inside
of a companion star.
Assuming you're using T:TNE rules, check out page 192 at the bottom right
corner, step 12. Certain orbits are prohibited from being occupied
by planets depending on the orbit of the star.
I fyou are not using TNE, stable orbits are available within roughly 1/3
of the separation between the two stars, and outside of 3 times their
separation.
Also note that the "companion" star doesn't really orbit the primary star,
the two stars orbit around a common center of mass. Putting the
companion in one of the primary's orbits is just a simplified way of noting
the separation between the two.
Planets in the orbit numbers greater than the companion star actually orbit
the center of mass of the two stars. Again, noting their position as
the "primary's" orbit numbers is just a way of keeping the record-keeping
simple.
My advice: Move the star further out or closer in, so that it doen't
interfere with the orbit of the main world.
John H Bogan