Vision Bonnet I2C issues

[devildog125]

I wanting to stack a servo bonnet along with a motor bonnet underneath the vision bonnet. The servo and motor bonnets connect via i2c. Once I connect all 3 together, the PI starts however the vision bonnet is unable to be used. I made sure there aren't any address conflicts between the 3 however I am still unable to use the vision bonnet once powered on. Are there reasons why the vision bonnet can't be used with other i2c devices? I was under the impression that the vision bonnet uses the SPI bus?

[Manoj]

Please see https://aiyprojects.withgoogle.com/vision/#makers-guide--gpio-header-pinout to get the details of which pins are being used by the vision bonnet.
Highlighted pins here are in use.