When a deployment is created in Aria Automation using an Orchestrator workflow which generates a large amount of data (>20MB), it can fail to be deleted in the Automation portal.
Trying to delete the deployment using an API call can also fail with a "500 - Internal Server Error".
Aria Automation 8.18.x.
The large amount of data generated by the workflow is stored in the Catalog-DB and is unable to be read fully by the Automation UI due to size of the data.
If you experience this issue then please raise a Support Request at contact support and refer to article number 413728.