Please branch and build gtk-murrine-engine in epel9. If you do not wish to maintain gtk-murrine-engine in epel9, or do not think you will be able to do this in a timely manner, the EPEL Packagers SIG would be happy to be a co-maintainer of the package; please add the epel-packagers-sig group through https://src.fedoraproject.org/rpms/gtk-murrine-engine/addgroup and grant it commit access, or collaborator access on epel* branches.
Will you be able to branch and build gtk-murrine-engine in epel9? The EPEL Packagers SIG would be happy to be a co-maintainer if you do not wish to build it on epel9.
I've now filed https://pagure.io/releng/issue/10900 according to https://docs.fedoraproject.org/en-US/epel/epel-package-request/#epel_packagers_sig_members, because there was no response by the maintainer after three weeks and three attempts.
FEDORA-EPEL-2022-db2240ca4a has been submitted as an update to Fedora EPEL 9. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2022-db2240ca4a
FEDORA-EPEL-2022-db2240ca4a has been pushed to the Fedora EPEL 9 stable repository. If problem still persists, please make note of it in this bug report.