A compute environment can still appear available in Platform after its AWS Batch head or worker queue has been deleted or become invalid in AWS. Platform may then accept a run that fails later with a “JobQueue not found” error.

It would be helpful to have a check added the validates that the configured Batch queues exist and are valid when a run is submitted. If a queue is missing or invalid, show an actionable error before the run starts and identify which queue needs attention. This should cover the head and worker queues independently, since either one may be unavailable.