Notjohn, thanks for checking and letting me know.
From the information reported here thus far, it seems auto-hyphenation may appear only on the Fire HD6. I don't know yet whether the issue is caused by the epub/mobi I submit to KDP, a glitch in their conversion process, or if there may be something in Fire HD6's built-in reading app that doesn't play nice with my code.
I just submitted another file to KDP a short time ago; I'll review those results later today. This time, I changed
a lot of CSS (mostly font-related stuff), so
if those modifications do eliminate auto-hyphens on my HD6, it may be difficult to figure out exactly
what made the difference!
