CognitoLambdaTrigger CREATE_FAILED

`CloudFormation did not receive a response from your Custom Resource. Please check your logs for requestId []. If you are using the Python cfn-response module, you may need to update your Lambda function code so that CloudFormation can attach the updated version.
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Start with the Lambda function used by the CognitoLambdaTrigger and inspect its CloudFormation custom-resource logs, especially the reported requestId. Check whether the Python cfn-response module is involved and whether CloudFormation receives a response. Done means the trigger creates successfully without the CREATE_FAILED error.

Written by the indexing model from the issue text.