What must be done to accomplish this?
Fix the error that caused the rollback to fail, then select the Continue Update Rollback action in the console.
Select the Update Stack action with a working template in the console.
Update the password of the IAM user, then select the Continue Update Rollback action in the console.
Use the AWS CLI to manually change the stack status to UPDATE_COMPLETE, then continue updating the stack with a working template.
Explanations:
The proper way to resolve an UPDATE_ROLLBACK_FAILED error is to fix the issue that caused the rollback failure and then manually continue the rollback using the “Continue Update Rollback” action in the AWS Management Console.
Selecting the “Update Stack” action with a working template is not a valid solution for resolving an UPDATE_ROLLBACK_FAILED error. The rollback must be completed first before performing a new update.
Updating the password of an IAM user is not related to fixing a rollback failure. The rollback failure must be addressed by fixing the underlying issue and continuing the rollback process.
Manually changing the stack status to UPDATE_COMPLETE using the AWS CLI is not recommended and could lead to inconsistencies. The stack should be allowed to complete its rollback process before updating with a working template.
I value that the answer is:
Fix the error that caused the rollback to fail, then select the Continue Update Rollback action in the console.