Why eab_events_map breaks:
I had an issue which was confounding in another thread (https://premium.wpmudev.org/forums/topic/so-i-have-google-maps-installed-and-am-using-it-with) - I am not re-opening it because the issue is solved, but I need to report a bug.
If you add more than one marker to a map in an event - then
will no longer work. I have tested and deleting additional markers in a map so there is only one, will restore the shortcode to functionality.
Hope this helps anyone with the problem, and that it's not too hard of a fix to make this work.
I did extensive testing to make sure this was for sure the problem at both http://events.indyfestusa.com/go-local/ and an additional test site separate from it, and adding a second marker to a map makes the map code stop, removing it makes it come back. Everything else checks out as fully operational and solid.