Centos Stream 9 has updated systemd from 249 to 250 but systemd-extras (and specifically systemd-networkd) is still on 249.7-2 and is incompatible. Please update systemd-extras to match the systemd pacakge from Centos9 Stream.
FEDORA-EPEL-2022-10eee90ae6 has been submitted as an update to Fedora EPEL 9. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2022-10eee90ae6
FEDORA-EPEL-2022-10eee90ae6 has been pushed to the Fedora EPEL 9 testing repository. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2022-10eee90ae6 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-EPEL-2022-10eee90ae6 has been pushed to the Fedora EPEL 9 stable repository. If problem still persists, please make note of it in this bug report.