hi i can make working in non mbed code with adafruit aproach just adding this line to example
#include “Adafruit_TinyUSB.h”
apperars adfruit resolves this issues but the seed not update new core updates form adafruit, can be good for final users if they can work together but looks more rival companies cheers this line fix alots of problems wiht others librarys too
#include “Adafruit_TinyUSB.h”
PD; anyway i install al nrf52 boards