Deployment failing in "create redis virtual ip"

Issue

Running the overcloud deployment gives an error allocating a VIP for Redis:

2025-02-26 17:52:07,184 p=32215 u=stack n=ansible | 2025-02-26 17:52:07.184436 | 0274af00-0003-980e-45b1-00000000012c |      FATAL | create redis virtual ip | undercloud | error={
    "changed": false,
    "error": "Virtual IP address on the ctlplane network for stack overcloud not found. Service redis is mapped to the ctlplane network and thus require a virtual IP address to be present on the ctlplane network.",
    "invocation": {
        "module_args": {
            "api_timeout": null,
            "auth": null,
            "auth_type": null,
            "availability_zone": null,
            "ca_cert": null,
            "client_cert": null,
            "client_key": null,
            "fixed_ips": [
                {
                    "subnet": "internal_api_subnet"
                }
            ],
            "interface": "public",
            "network": "internal_api",
            "playbook_dir": "/home/stack/overcloud-deploy/overcloud/config-download/overcloud",
            "region_name": null,
            "service_name": "redis",
            "stack_name": "overcloud",
            "state": "present",
            "timeout": 180,
            "validate_certs": null,
            "wait": true
        }
    },
    "msg": "ERROR: Failed creating/deleting service virtual IP! Virtual IP address on the ctlplane network for stack overcloud not found. Service redis is mapped to the ctlplane network and thus require a virtual IP address to be present on the ctlplane network.",
    "success": false