I’ve got a button on a dialog box that calls SpellCheck() on the UI Document. It works OK in that if finds errors.
The problem comes when you click a replacement, it appends the correction to the start of the text box in which the problem word occurs. The problem word remains and the correction is appended to the start. So the error is not replaced.
Is this a known problem, I’ve tried a search but I’ve not found anything similar. I don’t think it’s a 8.5 issue in particular as the person who spotted the error probably uses a Notes 7 client.