Why did this happen for both the first and second trial?

[Avigor]

https://steamcommunity.com/sharedfiles/filedetails/?id=3387534350
Anyone have any clue why chests are appearing at this same exact place as I enter the final boss room of both the first and second trial? There was no chest before I entered this room, then the door locks and suddenly there's a chest there, behind the wall. Is it going to somehow become accessible during a later (perhaps the final) trial or something? Is it just a glitch?

[PetroniusProwler]

Same thing happened to me!!!It makes me furious as on youtube videos the chest appears where you can get it!I bet its the damn ascendio mod that fixes lag etc!As that is the only mod Im using

[Avigor]

I'm not using any in-game mods at all (I didn't really notice lag and only encountered one glitch where a chest in the moonstone cave was preopened and the legilimens tool seemed to think I had the butterfly glitch making me think it somehow misflagged something yet it still gave me the butterfly chests and 100% collection achievements despite me not actually having one of the vivarium ground spellcrafts as a result, idk).

My hunch as to what this could be happening here is the game for some reason spawning in the chest you get after the boss fight before you fight the boss and just waiting to change the rest of the room until after you've done (or at least started) the fight, which probably means a glitch-happy speedster could probably glitch through something to get to the pensieve skipping the boss if they really wanted. Granted, keeping track of which direction you go to the final platform from during the boss fight is not something I'm up to so I could easily be wrong but it at least sounds reasonable to me as a theory.