I just downloaded and installed Kali 2018.2 to my dell laptop. As soon as I launch Linset (an Evil Twin attack tool) and permit it to put card into monitor mode, the wireless adaptor shuts down as indicated by its LED light going out and as indicated by Kali network manager reporting "no wireless card found". I'm suspecting it could be an issue with either the wireless driver or the Kernel. The wireless adaptor works fine in normal mode and connects smoothly to wireless networks. The problem only arises when Linset tries to put the adaptor in monitor mode. Under Kali 2 (Sana), I never had any problems, so I know it can't be a problem with the adaptor itself.