Here's my target main menu:
- Movies (default parent node)
-- rule: genres is not HomeMovies
- Videos (custom parent node)
-- rule: genres is HomeMovies
My custom parent node (Videos) is filtered on genres as expected, but the Movies parent node is not filtered at all. I also gave it a try with a contain or does not contain rules on genre or with a does not contain in path rule, but the Movies node never gets filtered.