Issue is RDS Aurora engine version upgrade from 5.7 to 8.0 because of parameter group issue

Terraform Providers AWS Cloud Control
1

I am trying to upgrade my RDS aurora cluster from 5.7 to 8.0. I have created my new custom parameter group as well and attached the new parameter group with the modified cluster. After running the apply on terraform I am getting below error

Error: updating RDS Cluster (brands-{service-name}-service-db): InvalidParameterCombination: The current DB instance parameter group {service-name}-{service-name}-db-parameter-group is custom. You must explicitly specify a new DB instance parameter group, either default or custom, for the engine version upgrade.
        status code: 400, request id: 6cde5aab-59ae-4b98-85ce-cb38915d29ce

The parameter group which is coming in the error is the old one and I am not sure why its referring to the older one

2

i am also facing the same issue. did you manager to resolve this issue ?