Any UID values below 1000 are treated as system type users. These are hidden from the Login-screen.
If you want to see users on the Login-Screen the UID value needs to be greater than 1000.
Otherwise edit /etc/login.defs and search for UID_MIN in the text file. Change that value from 1000 to something smaller like 501
# vi /etc/login.defs
UID_MIN 500
GID_MIN 500
If you want to see users on the Login-Screen the UID value needs to be greater than 1000.
Otherwise edit /etc/login.defs and search for UID_MIN in the text file. Change that value from 1000 to something smaller like 501
# vi /etc/login.defs
UID_MIN 500
GID_MIN 500