It's not a real bug with JSesh, but the latest versions of Word on the Mac no longer understand when a mix of texts and drawings is copied to them (technically, they only take the text part when you perform RTF copy/paste operations). This behaviour is not only specific of JSesh.

The problem is of course that the default way for JSesh of performing copy/paste is by using RTF. This simply won't work (unless microsoft does something about it).