Why do this? The individual drivers will handle CS functions.
Did you get a single max to work before trying to get the 2nd one to work?
You are connecting 3 SPI devices not 2, as a note.
Double entry?
Leaving the other devices connected, if you comment out the TFT code and one t-couple are you able to get prints of the other t-couples data out put?
You do not need that.