Matek F405 - 9th servo output not showing up

Trying to use all 9 servo outputs on the F405 flight controller but the 9th servo isn’t showing up in the Servo Ouput tab. BRD_PWM_COUNT is set to 9. Anyone seen this before or know how to correct it?

there are only 6 pwm outs on a MatekF405

Apologies, I should have been more specific. It’s the F405 Wing fc. Shown here with 9 possible PWM outputs.

you only ever get 8 servos in the servos tab, you have to go into the full list for to get to SERVO9_ params