Hi folks! Thanks for the notes here. Indeed, we have a lot of users running on the Canvas theme and heard pretty much immediately upon releasing 3.0 that this issue existed. Good news though: the fix is something we can make totally on our end without having to involve Woo’s dev team, so we’ve got a patch coming in an impending dot-release (not 3.0.2, which ships over the next 24 hours, but it should be in 3.0.3 which we’ve got targeted for early next week).
In the interim, we’ve put together a gist for your functions.php file that should get things squared. It can be downloaded here: https://gist.github.com/jazbek/5959855.
If the issue persists from there, please let us know. But if you could do so in the existing thread for this issue (https://theeventscalendar.com/support/forums/topic/calendar-listing-all-my-posts-and-ignoring-my-events/) it’d be fantastic. I’m going to close this one for now to avoid having concurrent, isolated discussions. Thanks to you both for your patience and support so far.