xpath /process/properties/requester returning wrong value 8.5sp1

Migrateduser

Found one issue while running a deployment workflow. In my workflow I have an activity to get requester. Its returning root admin user of WEM instead of userID who started the deployment(publishing/unpublishing). The same workflow is working in 8.1 and returning correct value but after upgrade to 8.5sp1 its returning wrong value for requester. This issue is for all approval and deployment workflows.Using automatic activity with Following values:Application: vgnGetUserxpath="/process/properties/requester"topRelationOnly=TruevgnPayloadId= PayloadId from process inputAnyone having solution for xpath ?Thanks,Trilochan