ili9341 code seems to stop access to Serial1 (pin 0,1)

My ili9341 works fine with an xBee on Serial2, but fails when I switch to Serial1.

(I am migrating to audio card and Serial2 pins are occupied).

I only have one define that selects the serial port.

#define SerialXbee Serial2

thanks,

Richard

Always post complete source code & details to reproduce any issue!