SDDM Crashes on loginctl terminate-user $USER

[ArtsyMacaw]

Currently whenever a users session is ended via loginctl terminate-user SDDM crashes to black screen and fails to respond
Logs from journalctl:
Apr 06 21:57:13 leviathan sddm[727]: Authentication error: SDDM::Auth::ERROR_INTERNAL "Process crashed"
Apr 06 21:57:13 leviathan sddm[727]: Auth: sddm-helper (--socket /tmp/sddm-auth-a66c3ad0-1b7a-4dff-a3fc-10be7eb8c41a --id 9 --start /usr/bin/zsh -l -c sway --user haden) crashed (exit code 1)
Apr 06 21:57:13 leviathan sddm[727]: Authentication error: SDDM::Auth::ERROR_INTERNAL "Process crashed"
Apr 06 21:57:13 leviathan sddm[727]: Auth: sddm-helper exited with 1
Currently running sddm 0.21.0-4 on Arch Linux

[Vogtinator]

Authentication error: SDDM::Auth::ERROR_INTERNAL "Process crashed"

That is exactly what's supposed to happen with terminate-user. You shouldn't use it to log out.

That there's no greeter shown is independent of that. Anything useful in the logs? What's your config?

[ArtsyMacaw]

There's nothing else in the logs after it crashes, and this is running with the default config for Arch.
If this is expected behavior is there any reason not to close the issue?

[Vogtinator]

If this is expected behavior is there any reason not to close the issue?

It's expected behavior that terminating the session prints Authentication error: SDDM::Auth::ERROR_INTERNAL "Process crashed, but it's not expected that the greeter doesn't show.

If you kill just the zsh process instead of the whole session, does the greeter show up properly?

[ArtsyMacaw]

Killing just the zsh process or even sddm itself has the greeter showing up properly. Also, it seems when the greeter does fail from using terminate-user systemd reports that sddm itself is still running.
I was able to reproduce this on an different machine running fedora 39, I attached logs from both machines.
fedora-39.log
arch-linux.log

[ArtsyMacaw]

Poking around a bit more the Xorg process used to display the greeter is still running after the greeter crashes and manually killing it will cause sddm restart the greeter and display properly.