Dominikok

I created this word on 1.20.60.21 and word that also have this problem was created like Maybe few weeks after i created this word

I don't use any add-ons, I'm currently playing minecraft preview on the latest version. old worlds - what I mean is that the world I'm playing on was created some time ago. A few beta versions ago, the spawners worked normally, I was in many trial chambers and I even got a mace, but now on the latest beta version v1.21.0.22 when I entered this and also another world created before this version, the trail spawners do not work when I walk near them on creative or survival, the mobs inside do not move around and they do not start spawning mobs (of course, when you are on survival, because that is the only time they start to spawn) therefore, in a world created on this version, these spawners normally work as they should. I send here the video, what it looks like when stand next to it in creative or survival, when you go to trail chambers that was generator before this beta and also the newest generated trial chambers spawners looks the same and they do not spawn any mobs- it is the same thing when you place one or find one. On the words generated on this beta both of them either find ones or placed ones work normally. I hope you understood the problem now

i don’t know if i can post here video, i add here video but i didn’t see it

This is seed: 8883383886779273990

i tried also this on random generated seed and mobs also did not spawn