ICM20948 not working on external SPI port

Hi, I have been trying to get an ICM 20948 based board to work in SPI mode.

My current setup is:

Currently I am trying to initialise the sensor manually by using icm20948 -S start but it fails with the ERROR [SPI_I2C] icm20948: no instance started (no device on bus?) message.

Any ideas what might be the problem? I know the actual IMU board works (tested with an arduino), so I wonder if the issue is related to the px4 icm20948 driver.