By default, Eventable creates custom calendar reminders for every notification in your event. However, this functionality is not supported by a number of calendar platforms, which may result in users not seeing your notifications. To ensure everyone receives an notification, you can enable "forced calendar notifications" to create a 1-minute-long placeholder event at the time of your notification. This will then trigger a person's default calendar reminder at that time.
If you would like to enable this feature, do the following:
Choose Account Settings from the top right menu
Select the Calendar Feed Settings tab
Click the switch next to Force Calendar Notifications on all Calendars
Click the blue Save Changes button at the bottom to confirm