A client informed me the calendar on this site stopped showing any events. The version of WP at that point (yesterday) was 3.7.
In doing troubleshooting to fix the calendar, I upgraded to 3.7.1, with no change in behavior.
Read some of the posts here, and tried the suggestions that worked for others: changing the https to http, and changing the Retrieve events from/until settings from Beginning/End of Time. The only action that sort of worked was the latter of those, using "Start of current month" as the "Retrieve events from setting" got the entries for this month only to show, nothing in the future, no matter what I set the "until" time to.
We have events in both the past and future. No arrows show to go back and forward either. There is the Calendar page and one in the sidebar, which both worked well until this week apparently.
This Google Calendar is part of an individual's account, so no global settings etc. like in Google Apps. I don't know what else to try at this point, could you have a look, please? This app is the best one I've tried, so I'm really hoping for a solution!