set_aws_parameters does not set OPERATOR_REGION, SQS_URL, IAM_ARN

[fr3man1]

Hello,
I ran into an issue when running make install and it goes to set_aws_parameters to set OPERATOR_REGION, SQS_URL, IAM_ARN for sed. Instead of values, they are blank. Is this only on MacOS using default make binary? I have fixed it by avoiding variable definitions in particular action by directly setting:
sed -i .bak "s,OPERATOR_REGION,$(shell aws cloudformation describe-stacks --stack-name EKS-Secrets-Operator-Stack --query "Stacks[0].Outputs[?OutputKey=='Region'].OutputValue" --output text),g" config/manager/manager.yaml
and so on.