when installing a disconnected and/or private cluster, existing VPC and subnets are used and inserted into install-config, unfortunately CAPI installation failed with error 'failed to generate asset "Cluster API Manifests": failed to generate GCP manifests: failed to get control plane subnet'

    4.17.0-0.nightly-2024-07-07-131215

    Always

1. create VPC/subnets/etc.
2. "create install-config", and insert the VPC/subnets settings (see [1])
3. "create cluster" (or "create manifests")

Failed with below error, although the subnet does exist (see [2]):

07-08 17:46:44.755  level=fatal msg=failed to fetch Cluster API Manifests: failed to generate asset "Cluster API Manifests": failed to generate GCP manifests: failed to get control plane subnet: failed to find subnet jiwei-0708b-master-subnet: googleapi: Error 400: Invalid resource field value in the request.
07-08 17:46:44.755  level=fatal msg=Details:
07-08 17:46:44.755  level=fatal msg=[
07-08 17:46:44.755  level=fatal msg=  {
07-08 17:46:44.755  level=fatal msg=    "@type": "type.googleapis.com/google.rpc.ErrorInfo",
07-08 17:46:44.755  level=fatal msg=    "domain": "googleapis.com",
07-08 17:46:44.755  level=fatal msg=    "metadatas": {
07-08 17:46:44.755  level=fatal msg=      "method": "compute.v1.SubnetworksService.Get",
07-08 17:46:44.755  level=fatal msg=      "service": "compute.googleapis.com"
07-08 17:46:44.755  level=fatal msg=    },
07-08 17:46:44.755  level=fatal msg=    "reason": "RESOURCE_PROJECT_INVALID"
07-08 17:46:44.755  level=fatal msg=  }
07-08 17:46:44.756  level=fatal msg=]
07-08 17:46:44.756  level=fatal msg=, invalidParameter

    Installation should succeed.

FYI one of the problem PROW CI tests: https://qe-private-deck-ci.apps.ci.l2s4.p1.openshiftapps.com/view/gs/qe-private-deck/logs/periodic-ci-openshift-openshift-tests-private-release-4.17-multi-nightly-gcp-ipi-disc-priv-capi-amd-mixarch-f28-destructive/1810155486213836800

QE's Flexy-install/295772/
VARIABLES_LOCATION private-templates/functionality-testing/aos-4_17/ipi-on-gcp/versioned-installer-private_cluster
LAUNCHER_VARS
feature_set: "TechPreviewNoUpgrade"