Managed Instance Groups, that rely on health checks to restart unhealthy VMs, may remain in an unhealthy state

Summary: Managed Instance Groups that rely on health checks to restart unhealthy VMs may remain in an unhealthy state Description: We are experiencing an issue with Google Compute Engine beginning at Friday, 2023-04-21 02:00 US/Pacific. Our engineering team continues to investigate the issue. We will provide an update by Friday, 2023-04-21 04:15 US/Pacific with current details. We apologize to all who are affected by the disruption. Diagnosis: Customers impacted: any customer that uses Managed Instance Groups and relies on health checks to keep the instances within in a healthy state. Symptoms: Managed Instance Groups that rely on health checks to restart unhealthy VMs may remain in an unhealthy state. The issue should not impact running VMs. The issue should be occurring only if the VM reaches an unhealthy state. The automation that would usually fix it may not be working. Workaround: None at this time.