Steps to reproduce

1. Create a creative-mode world with bonus chest enabled and the behavior pack in Loot copy.mcpack activated.
2. Ctrl+piclblock the bonus chest.
3. Place and break the pickblocked chest at the same coordinate several times.
4. Repeat step (3) several times.

Expected result

Each time you place and break the pickblocked chest you get different loot from the custom loot table.

Actual result

Each time you place and break the pickblocked chest at the same coordinate you get the same loot. The only way to randomize the loot is to place the chest at a different coordinate.

I created an add-on for loot pools/tables, and every time I open a chest with a custom loot pool in the same coordinate, the loot that comes out is the same. However if I open the chest in a different coordinate, the loot is different than the previous spot, but still repeats the same loot, if that makes sense. I've attached a video to show this. It worked as intended before but now it doesn't.