Just a reminder as i got multiple PM from players saying auto-login is not working for primary account. Actually, auto-login is working fine, the problem was just you didnt enable the autologin for your primary account. Each of the accounts are separated, they have their own setting even if you add them into your accounts list. So if you change account setting( auto-login, spawnloc, spawnwep..etc ) of account A, only account A will be changed while the other accounts are not.
If you want to enable auto-login on your main account, just log into your main account and choose the main account from the list( main account will always appear first in the list ) and click Play. Then use
/autologin onSide tip: If you are lazy to change nicks to play with different accounts..just add your accounts to the account list of your primary account. So, you can just join with your primary account nick and choose which account you want to play. If you want to switch account, you can simply reconnect( Game menu(esc) > Reconnect ) as the account list will be shown everytime you login to your primary account.