Weird technical problem (autofill)

I often post from a Fire tablet. When I tap the Reply button in a thread, a keypad appears at the bottom of my tablet for entering text. In the past, suggested words appeared at the top of my keypad as I was typing, allowing me to shortcut typing every word out.

Said autofills have not been appearing for a couple of weeks now, a problem unique to my participation here (still working normally at other boards and Twitter). Have I messed up a setting somewhere?

Let’s move this over to Site Feedback (from ATMB), since this is about Discourse’s software. With a little luck maybe one of the Discourse folks will see it and comment.