How did you test monitor and inject?
In my just full-upgraded Kali VM 64:
Code:
root@kali:~# airmon-ng check kill && airmon-ng start wlan0
PHY Interface Driver Chipset
phy1 wlan0 rtl88x2bu Realtek Semiconductor Corp. 802.11ac NIC
ERROR adding monitor mode interface: command failed: Operation not supported (-95)