Has anyone else had this trouble? and is it a bug, or do you have a workaround?

We've setup optional fields in the company profile of Purchase orders (20181119).

According to the help file, we should be to send these optional fields to the Ledger, but when we use %hs1 or %hs2, we get an error message, "Invalid GL description code HS1"

I've attached 2 images

Thanks,