Microbit + HuskyLens 2

I have recently brought a huskylens 2 for microbit projects, using a kitronik 16 servo extension board (https://kitronik.co.uk/products/5694-compact-16-servo-driver-board-for-the-bbc-micro-bit?srsltid=AfmBOoq17XJxx0IzpPvsdTQl9nkhX-2M28JlK4kqFEdzrC29Ort4GtMn) . 

I have added the huskylens 2 extension to make code and can get it to initiate via i2c, using the servo plugs for power (gnd and v) and green to edge pin 19 and blue to edge pin 20 and also confirm that face detection for example is loaded. 

Ive run the attracted code to show if face detected or to show no of faces detected and it shows as 0 consistency, despite the huskylens 2 leds showing as identifying. 

Also wierdly when I try different code it will run the huskylens 2 will reboot when a face is detected, but when I use the same set up, but use object detection in huskylens it will detect an object fine but will restart when I move to face and identify one. 

Ive also tried serial protocols and using a micromate (forcing the pins). 

Could you please give me a any pointers as to where I'm going wrong?