Well we have a response:
"Version 28 and lack of reverse function update.
From testing it appears that the file is corupt that is available on the download page.
A confirmation test will be finished tomorrow morning and will have the file replaced on the download page. I will add a line indicating it has been updated AND will also post that it has been updated.
Sorry the the confusion and inconvience this has caused.
"
Good news. At least we have a fix coming.
Jack