The scenario “A Tear for Ossir”

Basically, it's a complete mess. I decided to replay it. On the easiest level, so I wouldn't get distracted from digging. If you don't approach it correctly, it says - "Offenders will be buried." I did everything right, and there was a video clip everywhere. On the last marker near the exit to the surface, it said - "Step back two steps and dig." Two steps - two markers, a shaft, and then - correctly, under the palm tree, on the mushrooms. Coincidence.
I created a new profile and started playing as a warrior. The last marker - again, two steps, palm tree, mushrooms... I decided - I'm going to kill everyone, but what if I don't kill them? I barricaded the blue TE in the upper right corner of the cave. The last marker... And what do you think? Palm tree, mushrooms. Yesterday, I decided - this is the last time. Seeing the painfully familiar message, I cried. I gave up.
My brother is playing. He spent a long time dealing with the TE. He killed them all. The last marker - "The story ends where it began."

Explain, if anyone understands, why I always find the treasure in the same place?