Multiple feeds not showing their events

I have 8 feeds defined on the back-end. I have a shortcode on one page that is supposed to show events from all 8 feeds. It’s been working fine for many months, but recently we noticed that it’s not showing all events.

Here’s the page:
http://emanuelsynagogue.org/whats-happening/

Here’s the shortcode in use on the page:
[gcal id=”13864,13859,13860,13867,13861,13865,13862,13863,13866″ type=”list”] (I’ve tried creating a brand-new page with this same shortcode; it has the same problem)

Here’s a regular google calendar iframe with all the same calendars (plus one extra):
http://emanuelsynagogue.org/whats-happening/calendar/

The feeds themselves show their events. If you view, for example, the feed for “brotherhood etc”, you can see it has a couple of events:
http://emanuelsynagogue.org/announcements/gce_feed/brotherhood-and-sisterhood/

Those two events also show up in the google iframe month grid (above). But they don’t show up on the What’s Happening page.

Here are the settings for that calendar:
https://www.dropbox.com/s/jpuoro4vkyxcku1/brotherhood-settings.png?dl=0

Use latest version of the plugin (2.2.6). Not sure when the problem started, but it very well might have been just after the plugin was upgraded from 2.2.5, which was 2 weeks ago.

Thank you for making and supporting this very useful plugin, and thanks in advance for your help!

https://wordpress.org/plugins/google-calendar-events/