HID attacks on Nexus 5, 4.4.4, MultiROM

Hi,

I have the following setup :
MultiROM :
1. main OS - android lollipop
2. secondary - 4.4.4 with nethunter

I can't execute any of the HID attacks.
As soon as I connect the device using USB to the PC I hear a "usb connect" and 1 second later "usb disconnect".
I tried it with MTP turned off and on - didn't work as well.
I took a look in the scripts, and saw that it tries accessing a folder "/data/local/" - but it didn't exist for me.

Have any suggestions how to debug the issue?

Is USB Keyboard working?

enable USB-Debugging