Hello,
This is still an issue and is not expected/definitely a bug regardless of where. No value for internal_ip_only is valid from terraform (excluding it or setting to null passes false on plan) and you cannot get past it forcing a recreate. As the other user mentioned, it works through gcloud and it needs to be work here.
im using:
Terraform v1.9.5
on darwin_arm64
- provider Terraform Registry v6.3.0