Example results in 'Unsupported baudrate' with Feather M0 & CircuitPython v7.3.3

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ERROR DESCRIPTION:

• Provided example code and documentation recommends using frequency 50000 but this results in ValueError: Unsupported baudrate with the circuit described below
• Default frequency of 100000 does work in limited testing but is specifically recommend against by the SCD30 datasheet
• I cannot find a list of baudrates supported by Adafruit Feather M0 Datalogger. Other common baudrates <50000 were tested but all resulted in the same ValueError.

CIRCUIT:

• Using Adafruit Feather M0 Datalogger with CircuitPython 7.3.3. and SCD30 sensor connected via i2c
• I am not using Adafruit Part ID 4867, I am using an SCD30 directly, without the Adafruit breakout board. This means the SCL and SCA lines are 3.3v despite the SCD30 datasheet recommending an i2c high of 3v max. I don't believe it is relevant to this issue however.

CODE:

import adafruit_scd30, time, board, busio

#i2c = board.I2C()     #  this works
#i2c = busio.I2C(board.SCL, board.SDA, frequency=100000)   #  this works
i2c = busio.I2C(board.SCL, board.SDA, frequency=50000)  #  this does not work
scd30 = adafruit_scd30.SCD30(i2c)

time.sleep(5)
print("CO2: %d PPM" % scd30.CO2)

CODE OUTPUT: ValueError: Unsupported baudrate