Adding AWS::Logs::LogGroup Resource caused Malformed transform error.

[hollsteinm]

As part of a process of cutting costs due to a needless infinite retention of CloudWatch logs, I attempted to add log group resources to add a one week expiration. I followed the steps and warnings in the linked issue comment without success. I also encountered this in another project, that just had the serverless transform by mistake, once I removed it, that cloudformation template worked fine. I currently reverted the changes in this public repo so that the transform would be successful:

https://github.com/TrollPursePublishing/aws-codepipeline-custom-action

That should work as a way to see how to reproduce the issue, as well as the below. As a note, I am also validating the template in a seperate build project using cfn-lint, cloudformation validate, and cfn_nag. I am validating both the project template and the packaged template output.

Steps to reproduce the issue:

1. Create a AWS::Serverless::Function resource with a name
2. Create a AWS::Logs::LogGroup resource with the name as !Sub "/aws/lambda/${YOUR_LAMBDA_RESOURCE}"
3. Deploy the cloudformation template

Observed result:
The stack fails withReceived malformed response from transform AWS::Serverless-2016-10-31

Expected result:
The stack transforms successfully and creates LogGroups for the Lambda functions.

[hollsteinm]

Closing issue because it looks like us-east-1 is having health issues in AWS that are related to Kinesis but also impacting this transform.