Compute Engine health check: compute.googleapis.com/healthChecks not available in LOGS EXPLORER

Compute Engine health check: compute.googleapis.com/healthChecks not available in Google Cloud LOGS EXPLORER

When I am in my TEST-project and I go to LOGS EXPLORER and then in the ALL LOG NAMES pulldown I enter "compute", I see these two items appear under COMPUTE ENGINE:
   healthchecks
    compute.googleapis.com/healthChecks
    logName="projects/oversightmd-test/logs/compute.googleapis.com%2Fhealthchecks"

  shielded_vm_integrity
    compute.googleapis.com/shielded_vm_integrity
    logName="projects/oversightmd-test/logs/compute.googleapis.com%2Fshielded_vm_integrity"

But when I am in my PROD-project, I do not see those two items, all I see is shielded_vm_intgrity.
I need the compute.googleapis.com/healthChecks item, why is healthchecks not showing up in PROD-project?

In both PROD and TEST project I have an IAM roles of OWNER andLOGGING ADMIN.

It looks like logging is enabled in both prod and test projects:

$ gcloud compute health-checks list --project myproject-prod
NAME REGION PROTOCOL
https-healthcheck-443 HTTPS

$ gcloud compute health-checks list --project myproject-test
NAME REGION PROTOCOL
https-healthcheck-443 HTTPS

$ gcloud compute health-checks describe https-healthcheck-443 --project myproject-test
httpsHealthCheck:
kind: compute#healthCheck
logConfig:
enable: true
name: https-healthcheck-443
selfLink: https://www.googleapis.com/compute/v1/projects/myproject-test/global/healthChecks/https-healthcheck-...

$ gcloud compute health-checks describe https-healthcheck-443 --project myproject-prod
httpsHealthCheck:
kind: compute#healthCheck
logConfig:
enable: true
name: https-healthcheck-443
selfLink: https://www.googleapis.com/compute/v1/projects/myproject-prod/global/healthChecks/https-healthcheck-...