Hey,
I have the exact same issue:
http://www.paperworks.org.au/events-calendar/e/kids-school-holiday-workshop/
I’m running Unite (heavily customised css) theme and woocommerce on this but these don’t seem to be causing it but, the single event pages disappear from ‘time-to-time’ and I found that i can turn it back on again by selecting different options in the Product settings/permalinks/permalink base down on the wp dashboard. Kinda strange.
Anyway, any love on the Google maps issue would be nice.
Cool plugin by the way. 🙂
