try putting wlan1 in monitor mode manually
instead of running airmon-ng
# ifconfig wlan1 down
# iw dev wlan1 interface add mon0 type monitor
# ifconfig wlan1 up
$ sudo airodump-ng mon0
if you are able to see APs try injection test, if it works, you'r...
instead of running airmon-ng
# ifconfig wlan1 down
# iw dev wlan1 interface add mon0 type monitor
# ifconfig wlan1 up
$ sudo airodump-ng mon0
if you are able to see APs try injection test, if it works, you'r...