Can't use a PS/2 Keyboard and the SPI bus at the same time

[miameows]

Firmware

Adafruit CircuitPython 6.1.0 on 2021-01-21; Adafruit ItsyBitsy M4 Express with samd51g19

Code/REPL

import board, busio, ps2io
kbd = ps2io.Ps2(board.A2, board.A5)
spi = busio.SPI(board.SCK, board.MOSI, board.MISO)

Behavior

code.py output:
Traceback (most recent call last):
  File "code.py", line 3, in <module>
ValueError: MOSI in use

Code done running.

Description

If the kbd line is removed, it works fine.

[tannewt]

Please try the latest beta too.

[NathanY3G]

In case it helps to eliminate potential causes, I was unable to reproduce the above issue on a different M4 board running a build of 6.1.0 with the same pin mappings.

Adafruit CircuitPython 6.1.0 on 2021-11-18; Adafruit Grand Central M4 Express with samd51p20

>>> import board, busio, ps2io
>>> kbd = ps2io.Ps2(board.A2, board.A5)
>>> spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
>>>