(Cannot reproduce) Chest are almost not spawning in trial chambers

The bug

When I go to the trial spawners, the chest rooms are almost not generating in trial chambers.

seed: 1482454071836750625 

/execute in minecraft:overworld run tp @s 3890.39 -23.00 38.04 -760.07 61.50

Expect behavior

There is a corridor room, and the corridor room generate with a loot chest, there corridor end generate with copper grate.

Observed behavior

This room are not generating in trial chambers.