Scheduler is not available after updating PVA Management Node from 6.0-2152 (or earlier) to 6.0-2567 version, "Access denied" error message is displayed.
Under certain conditions, the presence of custom security roles in PVA causes post-update scripts failures.
The issue is recognized as a PVA product bug with internal ID PVA-34209.
Login to the PVA Management Node via SSH and run the following 2 commands:
# pvacc reconfigure # pvacc restart