I don't know why this happened, but in Minecraft Preview Bedrock edition, Allay doesn't follow us anymore if I'm holding the same block as him. It wasn't like that before. Before I held the same block as him and he followed me, but now he doesn't follow me anymore. I don't know if this is a bug, but before it didn't work like this. you can see in the video that Allay didn't follow me.