Originally reported in https://github.com/localstack/localstack/issues/2099, the CreationTime for CF stacks was hardcoded. This was fixed in in LocalStack itself (https://github.com/localstack/localstack/pull/2103), but is now also fixed in moto (https://github.com/spulec/moto/pull/2818).

I don't know what version of moto you're using, and whether it's acceptable to use dev-releases, but if you do: 

moto 1.3.15.dev550 should fix this issue, so the LS fix can be removed if you upgrade :) 
res_id = resolve_refs_recursively(stack_name, resource_props['ResourceId'], resources)
            if not api_id or not res_id:
                return None
            res_obj = aws_stack.connect_to_service('apigateway').get_resource(restApiId=api_id, resourceId=res_id)
            match = [v for (k, v) in res_obj['resourceMethods'].items()
                     if resource_props['HttpMethod'] in (v.get('httpMethod'), k)]
            int_props = resource_props.get('Integration')
            if int_props:
                match = [m for m in match if
                    m.get('methodIntegration', {}).get('type') == int_props.get('Type') and
                    m.get('methodIntegration', {}).get('httpMethod') == int_props.get('IntegrationHttpMethod')]
            return any(match) or None
        elif resource_type == 'ApiGateway::GatewayResponse':
            api_id = resolve_refs_recursively(stack_name, resource_props['RestApiId'], resources)
            client = aws_stack.connect_to_service('apigateway')
            result = client.get_gateway_response(restApiId=api_id, responseType=resource_props['ResponseType'])
            return result if 'responseType' in result else None
        elif resource_type == 'SQS::Queue':
            sqs_client = aws_stack.connect_to_service('sqs')
            queues = sqs_client.list_queues()
            result = list(filter(lambda item:
                
                item.endswith('/%s' % resource_id), queues.get('QueueUrls', [])))
            if not result:
                return None
            result = sqs_client.get_queue_attributes(QueueUrl=result[0], AttributeNames=['All'])['Attributes']
            result['Arn'] = result['QueueArn']
            return result
        elif resource_type == 'SNS::Topic':
            topics = aws_stack.connect_to_service('sns').list_topics()