A bit of a problem with Founders' Falls/citizen pathing
Hmm... I've always seen that area as being overcrowded with NPCs, but I never noticed that it could render nearby enemies invisible. 0.0
I hope you filed a /bug report about it.

[ ProTip: The banner is a link to art refs!! | The Khellection | The HBAS Repository | Brute Guides (4/16/10) | How To Post An Image - A Quick Guide ]
Biggest Troll on the forums? I'll give you a hint:

Yep, that location has been that was as long as I can remember.
For what it's worth, it's not the only location in the game that's like that. Sometimes you can see the same thing in Talos along the road that heads West towards Skyway entrance. You can almost always find a similar situation in Independence Port on the long stretch or road on the Eastern side between Kings Row and Brickstown as well.
On a side note, using your targeting key will still find foes in the group very easily.. even if they are beyond your draw limitations.
There's a bit of an odd problem going on in Founders' Falls, which is causing a slight performance degrade, not to mention potentially causing a hazard to players.
At this location, there's an overwhelmingly large number of citizens circling that building, to the point where it causes a slight framerate drop, but worse, hits the entity draw cap, rendering nearby enemies invisible.
Never surrender! Never give up!
Help keep Paragon City alive with the unofficial City of Heroes Tabletop Role Playing Game!