Kali live persistence

I have followed all the step to make usb perisistence. When I boot from usb kali live persistence . It boot normally at start but it cannot take input from touchpad. I have tried to connect external mouse also but it also not working.
Second most thing is this , kali is is freez after some time , it take input neither from keyboard nor from mouse. But pointer is moving from touchpad. But it doesn't take click or ahows any type slection when it goes over icon.
Can anyone tell me what can I do here or what I have done wrong?