Duplicate GI Lines

Hello,

I have a GI that I created to take SO’s to SO Lines so we can see the SO by inventory items. The team wanted to add the opportunity stage status, which has now created duplicate lines. I thought if I grouped by inventory item it would help, but it removed the below order I have been sampling. Anyone have an idea what the easiest solution fix is. I would like to be left with the line(s) with the stage ID and the duplicates can go away. Thanks