Wrong profit centre (Dummy PC) posting in MIRO document

Hi SAP Guru,

I have created a PO where profit centre assigned to WBS element. When I am doing GR correct profit centre in GR but at the time of MIRO dummy profit centre is coming. There is no PC to material as material group is there and PC assignment is coming from WBS element. I have checked 3KEH setting for GR/IR clg. account but unable to understand the reason of wrong posting in dummy PC instead of correct PC. Please help me.

Thanks in advance