Upgrading from f29 to f30 via system-upgrade brakes samba dc due to broken upgrade path. Before the upgrade python2-samba-dc is installed but the system-upgrade does not pull in python3-samba-dc (only python3-samba). The upgrade goes through and obviously samba does not work as expected afterwards because the dc python modules are missing.
samba-4.10.0-6.fc30 has been submitted as an update to Fedora 30. https://bodhi.fedoraproject.org/updates/FEDORA-2019-728dc348c6
samba-4.10.0-6.fc30 has been pushed to the Fedora 30 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2019-728dc348c6
samba-4.10.1-0.fc30 has been submitted as an update to Fedora 30. https://bodhi.fedoraproject.org/updates/FEDORA-2019-ca2eb8b8e2
samba-4.10.1-0.fc30 has been pushed to the Fedora 30 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2019-ca2eb8b8e2
samba-4.10.1-0.fc30 has been pushed to the Fedora 30 stable repository. If problems still persist, please make note of it in this bug report.