Hi… I just took a look at the source code again to verify this situation. The issue I was observing seems to only have been affecting templates in the Pro version, and I’ve just released an update for that.
I can confirm that this is how the plugin should be working right now:
1. If you do not set limitdays
, the dropdown will only include months up to the farthest future event in your feed.
2. If you set limitdays
, it will show empty months in the dropdown out to the date you set; e.g. if you set it to 365, it will show up to September 2021. (Month view starts its count with the 1st of the current month, not “today”.)
So, give limitdays="365"
a try in your shortcode, and let me know if that does not resolve the issue.