The a/c group would indeed circle in loiter outside the Nav zone, and would exit on a plotted course, but would not re-enter. Checked the exclusions on the Nav zone, and every boxed was checked.
Re-tried with only the aircraft threat and detection boxes checked, since these are a/c, and they would not loiter outside the Nav zone, and would not exit on a plotted course. So they honored the exclusion and they should.
Re-tried again with only the General Exclusion boxes checked, which is supposed to exclude everything, and got the bad behavior again.
Posting an amended bug report to AGSI.
Jeff Krump
When you have to kill a man, it costs nothing to be polite.
-Sir Winston Churchill-