When using the UiPath.Core.Activities.GetQueueItems activity and retrieving the value for QueueDefinitionId, it returns the ID of the respective queue item instead.
Version: Studio 2021.10.5
Dependencies:
UiPath.System.Activities = 22.10.4
UiPath.UiAutomation.Activities = 22.10.5
"id: " + item.Id.ToString
"Defid: " + item.QueueDefinitionId.ToString