I've just updated to Vegas Studio Platinum 17 with bundled HitFilm Superhero Pack. However, new plugins are not showing up under Video FX tab. Superhero Pack was installed and activated successfully. Plugin files are located at C:\Program Files\Common Files\OFX\Plugins.
I also tried to downgrade to Vegas Studio Platinum 16. HitFilm Plugins are visible.
How to make Superhero Pack work in Vegas Studio 17?