https://bugzilla.redhat.com/show_bug.cgi?id=1444634
--- Comment #21 from Fedora Update System updates@fedoraproject.org --- alembic-1.7.1-3.fc26, blender-2.78c-4.fc26, openvdb-4.0.1-2.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.