IDEX Part Cooling Fan Issues

Hi All,
I have just finished my IDEX upgrade and I am running into issue with my Part Cooling. The error is: pin PA0 is an alias for fan_part_cooling_pin
I used this guide https://os.ratrig.com/docs/guides/4028 when I first built my VC4 XY & Hybrid but since upgrading to IDEX I run into this issue.
I've used user overrides as below in my printer.cfg
I am using the BTT Octopus MAX EZ board.

Print cooling fan with Enable Pin for 0% on Printer Startup

[fan]
pin: !toolboard_t0:fan_part_cooling_pin
cycle_time: 0.01
enable_pin: PF7 #(HE3) on MAX EZ board

Print cooling fan with Enable Pin for 0% on Printer Startup

[fan]
pin: !toolboard_t1:fan_part_cooling_pin
cycle_time: 0.01
enable_pin: PF9 #(HE2) on MAX EZ board

Could anyone assist please?

printer.cfg21.81KB

Connecting a 4028 fan | RatOS

4028 server fans are becoming a popular option for part cooling because of their light weight and great pressure and flow rates. In this guide we'll go over how to connect one and use it for part cooling. 4-pin fans usually aren't used in 3d printers, and many boards only provide 2-pin ports, but fear not! There's always a way.