Dated reminders continue to show on the Apple Watch after the date has passed. They DO NOT show up in the GoodTask App or on the iPhone Reminder app.
When I manually select the Reminder as completed on the Apple Watch, it appears to delete but continues to show on the watch face complication. The only way I have found to get rid of it is by restarting the Apple Watch. Restarting the phone, the Reminder app or the GoodTask app does not fix the problem.