After discovering iDRAC it appears in two groups automatically.

We have more than 600 Servers added to Dell OME and they are all supposed to be assigned to different groups like _Prod, _Stage, _Dev, _Dev-Group1, _Prod-Group1. We have a shared VLAN in which there are servers from different lanscapes so we have added discovery ranges for specific servers by importing them in discovery ranges. My problem is when I discover one server, After discovery is completed it gets added to more than one group in the list mentioned above. As soon as I delete a server from one group it gets deleted from the other group as well. How should I fix this ?