Possible glitch on Examination Room

[Igor Welkenbach (Brazil)]

Hello, I´m having the following problem : I have the all the previous chemicals poured into the mixer in the examination room in order to make the antidote: but when i select the substance container (filled) item, no matter how i position it, it wont register with the machine (the player wont *use* it). No message like "I need to think straight* is shown, and the item remains in my inventory. I am trying to pour it down the same funnel i used for all the other chemicals.

EDIT: Nevermind, i was just trying the wrong place to pour it...