Unable to logout with network account (LDAP)

running elementary OS 5.1.6 Hera the logout doesn’t work anymore after replacing the local account login by LDAP account login.

journalctl reports

Jul 17 15:35:01 eos wingpanel[4311]: EndSessionDialog.vala:184: Unable to logout:
GDBus.Error:org.freedesktop.login1.NoUserForPID: Caller does not belong to any logged in user or lingering user

https://github.com/NixOS/nixpkgs/issues/60496 mentioned a problem with light-locker but I didn’t notice a problem with light-locker on the system.

Logout with local accounts work fine.

Any ideas?

Edit:

For some reason the problem is solved after installing Debug-Symbols:

apt install libnss-ldapd-dbgsym