Existing Allays in my survival world have once again lost the ability to duplicate/breed using amethyst shards. They dance to a jukebox properly but when given an amethyst shard simply hold it like any other item.

I tried creating a fresh world and Allays duplicated fine. I think this is similar to the Java issue here: MC-253134

As the world is pure survival I have not been able to find any new Allays to test whether this is only a problem with Allays that originated in older versions, but that's what it seems like.