POE2 Early Singularity Glitch: Skip to Chapter 3 Final Boss

I discovered a bug in POE2. After defeating "Mighty Silverfist" in "Jungle Ruins," then obtaining "Orokk Poison" in "The Venom Crypts" and returning to the main city, for some reason the "Singularity" was already open. I then directly entered the Singularity and went on to defeat the final boss of Chapter 3. Compared to the normal progression, I only missed out on obtaining the 10% Fire Resistance and 30 spirit.
I'm not entirely sure how to trigger this bug.Afterward, the Singularity was closed, but once I returned from The Venom Crypts, it reappeared.

I hope the developers can review my data and fix this bug, as it could affect the fairness of speedrun competitions.

no drowned city - apex of filth - temple of kopec?
Huge :D