circuitpython: "ValueError: All timers for this pin are in use" for pin that supports PWM and is not being used for anything else.

I have an ItsyBitsy M4 and am trying to use pin A5 as a pwm output however I am getting this error. Here is the line that errors: fan = pulseio.PWMOut(board.A5, frequency=5000, duty_cycle=0) A5 is not used for anything else so that shouldn’t be an issue.

Thanks!