Hi,
I have the same problem.
WordPress 4.1.1 + WooCommerce 2.3.5 + WooCommerce Tickets 3.9.2 + WPML 3.1.8.6
When I try to add a new ticket to an event, after clicking “save” it says the ticket is saved, but it doesn’t show up. Not in the event itself or in Woocommerce.