Sometimes, attempting to run lambdas will return this type of error:
```
{"Type": "Server", "message": "Error executing Lambda function arn:aws:lambda:ap-northeast-1:000000000000:function:service-stage-functionName: An error occurred (ResourceAlreadyExistsException) when calling the CreateLogGroup operation: The specified log group already exists Traceback (most recent call last):\n 
File \"/opt/code/localstack/localstack/services/awslambda/lambda_api.py\", line 338, in run_lambda\n 
event, context=context, version=version, asynchronous=asynchronous)\n 
File \"/opt/code/localstack/localstack/services/awslambda/lambda_executors.py\", line 81, in execute\n 
return do_execute()\n File \"/opt/code/localstack/localstack/services/awslambda/lambda_executors.py\", line 70, in do_execute\n self._store_logs(func_details, log_output, invocation_time)\n 
File \"/opt/code/localstack/localstack/services/awslambda/lambda_executors.py\", line 105, in _store_logs\n logs_client.create_log_group(logGroupName=log_group_name)\n 
File \"/opt/code/localstack/.venv/lib/python3.6/site-packages/botocore/client.py\", line 357, in _api_call\n 
return self._make_api_call(operation_name, kwargs)\n 
File \"/opt/code/localstack/.venv/lib/python3.6/site-packages/botocore/client.py\", line 661, in _make_api_call\n 
raise error_class(parsed_response, operation_name)\n
botocore.errorfactory.ResourceAlreadyExistsException: An error occurred (ResourceAlreadyExistsException) when calling the CreateLogGroup operation: The specified log group already exists\n", "__type": "InternalFailure"}
```
I am not yet sure if there are any particular settings that cause it, since it does not occur for certain deployments.

Will update if I can figure out the exact configuration.
aws_stack.connect_to_service('sns').subscribe(
                TopicArn=topic_arn, Protocol=subscription['Protocol'], Endpoint=endpoint)
    elif resource_type == 'S3::Bucket':
        tags = resource_props.get('Tags')
        if tags:
            aws_stack.connect_to_service('s3').put_bucket_tagging(
                Bucket=params['Bucket'], Tagging={'TagSet': tags})
    return result
def deploy_template(template, stack_name):
    if isinstance(template, string_types):
        template = parse_template(template)
    resource_map = template.get('Resources')
    if not resource_map:
        LOG.warning('CloudFormation template contains no Resources section')
        return
    next = resource_map
    iters = 10
    for i in range(0, iters):
        
        for resource_id, resource in next.items():
            stack_resource = describe_stack_resource(stack_name, resource_id)
            resource['__details__'] = stack_resource
        next = resources_to_deploy_next(resource_map, stack_name)
        if not next:
            return
        for resource_id, resource in next.items():
            deploy_resource(resource_id, resource_map, stack_name=stack_name)
    LOG.warning('Unable to resolve all dependencies and deploy all resources ' +
        'after %s iterations. Remaining (%s): %s' % (iters, len(next), next))
def is_deployable_resource(resource):