I was really enjoying geany's autocomplete function (for words. I use geany to edit text, not code), particularly the way it deletes the remaining part of an existing word you're overwriting (if that option is chosen).

Suddenly autocomplete no longer works at all. The only thing I can think is different is I changed the line height of the display, a la https://github.com/geany/geany/issues/1592, but I can't see how that would affect this. And I customized some theme colors.

I've tried jogging various settings, to no avail. Here's a shot of my settings. I don't see anything wrong with them. Thanks.