Schedule 8 CPP maximum earnings and exemption don't match number of months in line A

[rlyl]

I retired at age 67 and started collecting CPP in March. My T4A(P) shows 10 months in Box 23. However, on Schedule 8 line A of Part 2, it says 12 months. The amount on Line 1 in Part 3 shows the 12 month maximum of $66,600 BUT the maximum basic CPP exemption is showing $583.33, which is the amount for 2 months (not 12).  It appears this is linked up with the T4A(P), not the number in line A of Part 2.  Should line A of Part 2 be showing 2 months and line 1 of Part 3 be showing the maximum for 2 months (i.e., $11,100)? 

[rlyl]

FYI - I just spoke to CRA. The agent said that the 12 months in line A was correct, as was the $66,600 in line 1 of Part 3, and the amount in line 4 was also calculated correctly.  So... there is no issue with the way it is being calculated by TurboTax. Leaving this here in case it helps anyone else.