httpd won't start when upgrading from OSP 8 to OSP 9 with redefined ServiceNetMap in Red Hat OpenStack Platform

Issue

Templates will work with the following section added to network-environment.yaml in OSP 8. The same templates fail in OSP 9.

ServiceNetMap:
    NeutronTenantNetwork: tenant
    CeilometerApiNetwork: internal_api
    MongoDbNetwork: external
    CinderApiNetwork: external
    CinderIscsiNetwork: storage
    GlanceApiNetwork: external
    GlanceRegistryNetwork: external
    KeystoneAdminApiNetwork: external
    KeystonePublicApiNetwork: external
    NeutronApiNetwork: external
    HeatApiNetwork: external
    NovaApiNetwork: external
    NovaMetadataNetwork: external
    NovaVncProxyNetwork: external
    SwiftMgmtNetwork: storage_mgmt
    SwiftProxyNetwork: storage
    HorizonNetwork: external
    MemcachedNetwork: external
    RabbitMqNetwork: external
    RedisNetwork: external
    MysqlNetwork: external
    CephClusterNetwork: storage_mgmt
    CephPublicNetwork: storage
    # Define which network will be used for hostname resolution
    ControllerHostnameResolveNetwork: external
    ComputeHostnameResolveNetwork: external
    BlockStorageHostnameResolveNetwork: internal_api
    ObjectStorageHostnameResolveNetwork: internal_api
    CephStorageHostnameResolveNetwork: storage

Using that same config to deploy to OSP 9 it fails and it cannot start httpd.

Output from the overcloud controller for OSP 9.

systemctl status httpd -l
(...)
Nov 02 21:50:24 overcloud-controller-0.localdomain python[17948]: /usr/share/openstack-dashboard/openstack_dashboard/templates/horizon/_conf.html
Nov 02 21:50:24 overcloud-controller-0.localdomain python[17948]: /usr/share/openstack-dashboard/openstack_dashboard/templates/_stylesheets.html
Nov 02 21:50:24 overcloud-controller-0.localdomain python[17948]: /usr/share/openstack-dashboard/openstack_dashboard/templates/horizon/_scripts.html
Nov 02 21:50:24 overcloud-controller-0.localdomain python[17948]: Compressing... done
Nov 02 21:50:24 overcloud-controller-0.localdomain python[17948]: Compressed 4 block(s) from 3 template(s) for 1 context(s).
Nov 02 21:50:25 overcloud-controller-0.localdomain httpd[18136]: (98)Address already in use: AH00072: make_sock: could not bind to address [::]:8041
Nov 02 21:50:25 overcloud-controller-0.localdomain httpd[18136]: (98)Address already in use: AH00072: make_sock: could not bind to address 0.0.0.0:8041
Nov 02 21:50:25 overcloud-controller-0.localdomain httpd[18136]: no listening sockets available, shutting down
Nov 02 21:50:25 overcloud-controller-0.localdomain httpd[18136]: AH00015: Unable to open logs
Nov 02 21:50:25 overcloud-controller-0.localdomain systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILURE
Nov 02 21:50:25 overcloud-controller-0.localdomain kill[18139]: kill: cannot find process ""
Nov 02 21:50:25 overcloud-controller-0.localdomain systemd[1]: httpd.service: control process exited, code=exited status=1
Nov 02 21:50:25 overcloud-controller-0.localdomain systemd[1]: Failed to start Cluster Controlled httpd.
Nov 02 21:50:25 overcloud-controller-0.localdomain systemd[1]: Unit httpd.service entered failed state.
Nov 02 21:50:25 overcloud-controller-0.localdomain systemd[1]: httpd.service failed.
Nov 02 21:50:27 overcloud-controller-0.localdomain systemd[1]: Stopped The Apache HTTP Server.
(...)

/etc/httpd/conf/ports.conf has the following for OSP 9, it has extra lines for "Listen" versus the OSP 8 overcloud controller.

cat ports.conf
# ************************************
# Listen & NameVirtualHost resources in module puppetlabs-apache
# Managed by Puppet
# ************************************

Listen 10.0.0.150:35357
Listen 10.0.0.150:5000
Listen 10.0.0.150:80
Listen 8041
Listen 8042

cat /etc/httpd/conf/ports.conf
# ************************************
# Listen & NameVirtualHost resources in module puppetlabs-apache
# Managed by Puppet
# ************************************

Listen 10.0.0.121:80