Is the misprint you guys are referring to the one that had one professor talking about another?
Yup, that's the one. It's true you could still come up with the right answer in spite of the error, but under the pressure conditions of the test, I can see how that error could have caused people to get thrown off.
The funny thing is, I don't think it was actually a misprint. I initially thought so too, but I think it was just redundant to explicitly distinguish between professors. Of course, my head was up my ass for some of these LR questions, so I could be way off.