Not able to add stackset outputs after initial deployment

[hansarh]

Describe the bug After I have deployed a stack_set and defined some export_outputs I am not able append additional outputs after the initial deployment. f.ex if I have defined a stack_set like this:

  - name: beta-sharing-public-subnets
    description: Sharing public subnets in networking hub account
    resource_file: network/templates/public-subnets-sharing.yaml
    parameter_file: network/parameters-prod/beta/public-subnets-sharing-parameters-beta.json
    deploy_method: stack_set
    export_outputs:
      - name: /public-subnet-eu-west-1a
        value: $[output_PublicSubnetIDAZA]
      - name: /public-subnet-eu-west-1b
        value: $[output_PublicSubnetIDAZB]
    deployment_targets:
      accounts:
        -  # networking-hub
    regions:
      - eu-west-1

Adding an output after this is deployed does not result in an output being available for other stack_set definitions. I might need to output a third subnet after some time like this:

  - name: beta-sharing-public-subnets
    description: Sharing public subnets in networking hub account
    resource_file: network/templates/public-subnets-sharing.yaml
    parameter_file: network/parameters-prod/beta/public-subnets-sharing-parameters-beta.json
    deploy_method: stack_set
    export_outputs:
      - name: /public-subnet-eu-west-1a
        value: $[output_PublicSubnetIDAZA]
      - name: /public-subnet-eu-west-1b
        value: $[output_PublicSubnetIDAZB]
      - name: /public-subnet-eu-west-1b
         value: $[output_PublicSubnetIDAZC]
    deployment_targets:
      accounts:
        -  # networking-hub
    regions:
      - eu-west-1

To Reproduce Try deploying a stack_set and append a new output after the initial deployment

Expected behavior I expect adding an output to a stack_set will actually add an output.

Please complete the following information about the solution:

• [ x ] Version: v2.4.0 and v2.5.0

To get the version of the solution, you can look at the description of the created CloudFormation stack. For example, "(SO0089) - customizations-for-aws-control-tower Solution. Version: v1.0.0". You can also find the version from releases

• [ ] Region: [e.g. us-east-1]
• [ ] Was the solution modified from the version published on this repository?
• [ ] If the answer to the previous question was yes, are the changes available on GitHub?
• [ ] Have you checked your service quotas for the sevices this solution uses?
• [ ] Were there any errors in the CloudWatch Logs?

Screenshots If applicable, add screenshots to help explain your problem (please DO NOT include sensitive information).

Additional context Add any other context about the problem here.

[snebhu3]

@hansarh thank you for reporting the issue. I have created a backlog to address this with the team.