Guise Bug -- Uh, Yeah I'm That Guy (UYITG)?

Possible Guise bug with Hey I'm That Guy.  Was playing against Plague Rat.  Heroes were Legacy, Skyscraper, Guise, Mr. Fixer (in that order).  All heroes were infected.  Legacy had Inspiring Presence in play.  Guise played Uh, Yeah I'm That Guy (UYITG).  

The game asked me which I wanted to take effect first (Inspiring Presence or Infection).  When I chose Infection, the game said "No more copies of Infection in deck!" and then proceeded to play the next card off of Plague Rat's deck.  

Any reason why that should happen?

Text of infection is "When this card is played if all Heroes are infected play the top card of the villian deck..." Since everyone was infected it played the top card of the deck. Assuming you didn't close the program I assume that Um... Yeah i'm That Guy moved itelf to the villain trash as per the second sentence on Infection. 

So in short, not a bug, just one of the wonderful peculiarities of being Guise.

It still shouldn't check for copies of Infection in the villain deck.  The actual result makes sense (UYITG is discarded and the top card of the villain deck is played), but that message seems to be erroneous.  I wonder what would have happened if there had been a copy of Infection in the deck.