Trial spawners do not work in worlds started in 1.20.60.21 Preview

Hello, I discovered that in the old world, on bedrock edition, on the latest version, when visiting the trial chambers, none of the trail spawners work, neither the previously generated structures or the newest ones, as can be seen on scrin schots after omnimous spawners next to it or the old vault block around. the newly placed spawner also does not work, in all cases mobs in could not spin, it is happend on survival or creative etc. on the newly generated world, spawners work