Extracted from factory, went back and saw the same pilgrim with the same backpack with all the same loot.

I dropped the pilgrim so i could check to see if there was anyone there. since i was running to gate 3 to exfil. I picked up the pilgrim, ran to exfil, did a few things in the menu and i got out, and came back. I ran back to office again and saw there was a pilgrim on the floor. I checked the pilgrim and it had the exact same loot that it had the last run. I picked it up and it like duplicated, and when I tried to pick it up again the pilgrim I duplicated from it would just teleport into my inventory. Whatever I did in one pilgrim went to the other, so whatever i searched in the first one would be searched in the one on the floor, and vice versa. Can anyone explain this? I have less that like 10 mods, so I dont think its that. It sounds like a creepypasta but I have a video I dont think I can post it though