no prompt when using for sudo

[sjborbajr]

I added this to /etc/pam.d/sudo, and it just shows a blank prompt.
auth sufficient pam_tacplus.so server=192.0.2.22 server=192.0.2.72 secret=secret

Last login: Mon Mar 28 09:56:21 2022 from 192.0.2.157
me@server01:~$ sudo ls

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I typed in the password and it auth'd; so it works, just no feed back