We started a realm on snapshot 25w43b, and today we upgraded the realm from 25w44a to 25w45a.

Upon entering and exploring the trial chambers, we noticed that no loot was appearing in any of the chests or pots, nor above the spawner after it deactivates.

I tested in a world created in 25w43b on singleplayer, and they seem to spawn with loot there. We also tested a brand new world on realms (25w45a), and they seem to spawn with loot there as well, so it's specifically for Trial Chambers generating in Realms / server worlds created before 25w45a.

Steps to reproduce:

1) Have a realm world that was created on a version older than 25w45a

2) Find a newly generated trial chamber