…instances are invisible, incorporeal humanoid beings only visible through the use of infrared and ultraviolet imaging at certain wavelengths.
Uh, Invisibility Hazard and Incorporeal Hazard isn't in Hazard Types? Weird that I see this again only 2 articles ahead.
Also why is the lethality rating Red? There's nothing in the article about the anomaly killing or hurting others.
Other than that, this article definitely made me question reality. But the RPC ends kind of abruptly on what it considers to be "an immense threat to global normalcy". Come on, why don't I get to see an investigation or plan into solving the RPC-201 problem? Was disappointing in that regard, but other than that, decent piece that I think could lead to interesting tales. 4 stars.