It's only happening in a big world and its copy. The copy has experiments on but the regular doesn't, and still both don't work. Also I don't play with ANY resource packs so it's not that. Dunno if it's useful but when I meant big, I mean a 1GB world. Thanks
Well it seems like all our affected worlds are +1GB big worlds, so it's probably due the saving limitations of Bedrock edition. Maybe adding more free space for worlds allowing us to make them bigger, just in devices capable of supporting such, would solve the problem. A Switch is gonna struggle with a 1GB world but a decent PC or a PS5 can run perfectly those. Just an idea