We have assigned 3 dedicated subnets (one per AZ ) to the Databricks workspace each with /24 CIDR but noticed that all the jobs are running into a single subnet which causes 

AWS_INSUFFICIENT_FREE_ADDRESSES_IN_SUBNET_FAILURE.

Is there a way to segregate the jobs across all the available subnets instead of using the same one all the time ?

Error Message:

Unexpected state for cluster (1217-000012-7mijsxio): AWS_INSUFFICIENT_FREE_ADDRESSES_IN_SUBNET_FAILURE(CLIENT_ERROR): aws_api_error_code:InvalidParameterValue,aws_error_message:Not enough free addresses in subnet subnet-0bd28fa8a819c24f1