MMWCAS-RF-EVM: TX channel description faulty?

Hello,

I'm a little bit confused about the describtion of the TX channels. The following graph shows that the TX channel of AWR#4 are 0 to 2 from left to right. 

[mmWave Cascade Users Guide, p.37]

1. Why 0? All other channels are described as 1 to 3.

2. The numbering seems to be wrong. Looking at the frontend and the documentation the channels have to be in the image as described:

But looking at the Pins of the AWR2243 it seens that the channel description is wrong:

The upper TX channel is 1 and the lower TX channel is 3.

[AWR2243_chip, p.9]

So I assume that the TX channels are described faulty. I'm I right or do I consider it wrong?

Thanks for your help!