HTTP-GET module no encoding username and password to NTLM string

"In the HTTP-GET module, NTLM encoding in Hydra ignores the entered usernames, passwords, and domain. It always encodes the same Net-NTLM string. I redirected Hydra through Burp Suite and captured the GET requests. The NTLM string did not change. Basic encoding worked fine. I tested versions 9.1 and 9.5 on both Windows and Kali Linux."

hydra -I -l admin -p password -V servername http-get '/:A=NTLM:F=401' hydra -I -l admin -p password1 -V servername http-get '/:A=NTLM:F=401'

proxy intercept always: GET / HTTP/1.1 Host: servername.com Authorization: NTLM TlRMTVNTUAABAAAAB7IAAAAAAAAAAAAAAAAAAAAAAAA= User-Agent: Mozilla/4.0 (Hydra) Connection: keep-alive

I'm not sure if the switch -m domain should work, but it would be good if it performed the prefix DOMAIN.