error in schweser?

dont expect many ppl to care at this point but i had found an error awhile ago that i had bookmarked and jsut came across again:

book 4 page 115: bank enters 3 month forward contract, and they want to know credit risk one month in. the rates should be taken to the exponent of 2/3, but the answer takes it to the exponent of 2/12.

unless im missing something i think the exponent is wrong.

another one is book 2 page 139, where they say that when you assume constant returns to scale, TFP change = 0.

if you do the questions in the cfai books, the TFP is a nonzero numbers in this calc.