Problem editing some text

I have recently come across some MicroStation fonts that cannot be edited with the Word Processor. This is in MicroStation V8i, version 08.11.05.17.

 The fonts appear in my drawings, but when I try to make an edit to the text, the word processor shows up but it appears blank, as if I had not selected any text. I noticed that I can type text and it will make the change, but it's hard to edit text when you can't see what you are editing.  Sometimes the program will crash when this happens.

 These same fonts work normally if I edit the text using the Dialog Box instead of the Word Processor, so this is the work-around that I have to live with. Of course, this kind of thing drives the new MicroStation users crazy.