This error might be related to the EC2 credentials and how they are configured in IAM in the AWS console:


ss:abort- Cannot import the public key. Reason: EC2ResponseError: 403 Forbidden Unauthorized Operation You are not authorized to perform this operation.b5783c6-e844-4690-a852-73d77d8498



Please refer to the following blog post to properly configure the EC2 user in IAM to be used with SlipStream: