ajax calendar doesn’t link to posts by date

Let’s see, where to start.

I’m using AJAX Calendar 2.4.10, and I just noticed it’s not working like before. Look at this recent capture.

The 25th is highlighted because it’s mark as ‘today’, and the calendar used to look like this before. However, when I clicked the <<->> to show all the posts published in the month, all the days that had posts published would get highlighted with another color (light blue).

The same would have happened if I had clicked back to December, all the dates with published posts would appear highlighted, but now they don’t. They’re not even clickable! It’s as if AJAX is not recognizing the posts that have been published…

Any help? Anybody have a similar project? I’ve turned off my plugins, but it doesn’t seem to affect the calendar.

thanks.