A Failure is observed on vRA for ex; as below, causing vRA to fail in detaching iso mounted to ESXi host during upgrade task.
Aria Automation
Any error on the Aria Automation is caused due to exception met in the workflow scripted for any particular task on vRA.
Customer needs to engage with internal Workflow script admin to identify the cause of any exception, as Broadcom will not provide end-to-end support on Custom defined workflow scripts.
Initiate the problem identification from vRA workflow scripts. Contact Broadcom Support for Aria Automation related quires, and for any further assistance if required.
Customer is encourage to utilize Professional Services Organization (PSO) for any end-to-end support with regards to vRA.
https://www.broadcom.com/support/services/enterprise-software