I just started having exactly the same issue. I could have sworn that it was working correctly yesterday. Now I have to switch months and then back to March to see March events on the calendar.
Thanks for your plugins I LOVE THEM. Sorry I posted a question about this issue on your blog. Please delete it. This answered my question.
Same here. Premium Theme “Grain” posts do not show up in RSS widget either. Well, the first two did…. but no more – set to 10 or 5 doesn’t matter no new posts show up.