It worked fine for me when I tested it.
Maybe it’s because of the permissions. Now that you access information about users your executing user (typically robot role) needs view permissions for those to. You also need permission on Action Assignment.
This is not yet documented… (Activities - Wait for Document Validation Action and Resume )
Check this guy’s post though:
Hello, I had this issue for the longest time and finally got this resolved. In the ‘Robot’ Role in Orchestrator, you will need to enable “Create” and “Edit” options in the ‘Folder Permissions’ tab(Tenant>Manage Access>Roles>Edit) for the following :
Storage Files
Storage Buckets
Action Assignment
Action Catalogs
Actions
At first, I had all these and it still didn’t work. After testing some roles I found one other role necessary to avoid this exception which is actually under the ‘Tenant Permi…