[Starson17]

Originally Posted by Rachel

I had this problem until two days ago, when I realised that although I had been tidying the author field when editing meta data, I had neglected the author sort field....Now, I'm not suggesting you're as dense as me - but have you checked what is in that field?

The first post does say:

Re-entering/correcting the "author sort" field doesn't [fix] it.

Still, it works for me.