Deploying API Gateway and Lambda Integration using Terraform

I am trying to create Lambda function using Terraform. There is no permission issue.

aws_lambda_function.lambda: Creating... fails. │ Error: error creating Lambda Function (1): ValidationException: │ status code: 400, request id: 

I tried to debug and it has the same info. There is nothing much.

export TF_LOG=TRACE terraform apply 2>&1 | tee apply.txt

As per this git page it’s a known error.
https://github.com/hashicorp/terraform-provider-aws/issues/13709 Has anyone got it resolved? Thanks.