Howdy fails with Greetd (pam_setcred authentication error)

[Delta18-Git]

I've been using gdm for a long time, but recently I switched over to a Wayland compositor. I also switched my display manager to greetd at the same time. However with howdy (beta), greetd fails to start.

In the journal, the error is:

greetd[29536]: error: authentication error: pam_setcred: PERM_DENIED
greetd[29535]: unable to start greeter: session start failed: authentication error: pam_setcred: PERM_DENIED
systemd[1]: greetd.service: Main process exited, code=exited, status=1/FAILURE

On some investigation, I believe it can be due to setcred being defined as PAM_IGNORE in main.cc in the pam module in howdy/beta. Link to code

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I've searched for similar issues already, and my issue has not been reported yet.

Linux distribution (if applicable): Arch Linux

Howdy version (sudo howdy version): Howdy 3.0.0 BETA

[Delta18-Git]

PAM Configuration (/etc/pam.d/system-auth)

#%PAM-1.0

auth       requisite                   pam_faillock.so      preauth
# Optionally use requisite above if you do not want to prompt for the password
# on locked accounts.
-auth      [success=2 default=ignore]  pam_systemd_home.so
auth       sufficient                  /lib/security/pam_howdy.so
auth       [success=1 default=bad]     pam_unix.so          try_first_pass nullok
auth       [default=die]               pam_faillock.so      authfail
auth       optional                    pam_permit.so
auth       required                    pam_env.so
auth       required                    pam_faillock.so      authsucc
# If you drop the above call to pam_faillock.so the lock will be done also
# on non-consecutive authentication failures.

-account   [success=1 default=ignore]  pam_systemd_home.so
account    required                    pam_unix.so
account    optional                    pam_permit.so
account    required                    pam_time.so

-password  [success=1 default=ignore]  pam_systemd_home.so
password   required                    pam_unix.so          try_first_pass nullok shadow
password   optional                    pam_permit.so

-session   optional                    pam_systemd_home.so
session    required                    pam_limits.so
session    required                    pam_unix.so
session    optional                    pam_permit.so

Commenting the pam_howdy.so line allows the display manager to start.

[Delta18-Git]

The relevant code in greetd: Link