Errors when moving account configuration to external S3 bucket

Issue

When attempting to move Kubernetes accounts from Halyard config file to an external file in AWS S3 bucket (ref: https://spinnaker.io/docs/setup/other_config/configuration/#external-account-configuration) the accounts defined in the external .yml file are not loaded successfully. The following example error is seen in the UI: "credentials not found (name: ....)") when deploying app into the namespace of "...".

  Clouddriver logs show the following: 2021-08-01 22:10:16.334 INFO 1 --- [ecutionAction-5] c.n.s.c.k.s.KubernetesCredentials : Kind apiService will not be cached in account 'spinnaker-test' because it cannot be listed.

Cause

Utilizing dynamic account configuration with Spring Cloud Config Server is not the recommended workflow.   The following document notes that: Armory does not support using dynamic account configuration with Spring Cloud Config Server:https://docs.armory.io/docs/feature-status/armory-enterprise-matrix/armory-enterprise-matrix-2-26/#dynamic-accounts