Sort by event date

Hello
Since switching from v1 to v2, I have noticed a few problems. Among other things the following:
In the listings overview you can distinguish between 5 sorting options. In the admin area Events > Sorting I have only entered 4. I have not entered “Sort by date”, which is the default value and should sort the events actually by the event date. But it doesn’t. It sorts by the entry date.
Question 1: Why do 5 sorting options appear in the frontend and only 4 in the admin area?
Question 2: How do I delete the wrong entry, which I don’t see in the admin area?

Thanks
Jorge