lpadmin - Group not found

[ACG]

Hello all,

I feel like i'm going insane.. for as long as I've been imaging Macs I've been adding users to the print operators group using the following command:
dseditgroup -o edit -n /Local/Default -u admin -p -a everyone -t group lpadmin

Ever since Mojave, i get the error "Group not found". Ive tried every variation i can think of
sudo dseditgroup -o edit -n /Local/Default -u admin -p -a everyone -t group lpadmin

dseditgroup -o edit -n /Local/Default -a everyone -t group lpadmin

dseditgroup -o edit -n /Local/Default -a everyone -t group _lpadmin

etc..

When i run dscl . read /Groups/_lpadmin. i clearly see the group there. When i go to Directory editor i see the group there. What am i doing wrong? Thanks in advance!

[ACG]

Update after moving the commands around i was able to get terminal to accept the command.

So it asks for the admin password and looks like it accepts it but nothing happens. The print preferences are still locked. Any advice on how to give full rights to the print preferences to standard users? THANKS!