I'm unable to get rid of a filter that goes by the name of "My Filter". This is the default name you get when you click on New Filter. There's a clickable "Delete this filter", which leads to a confirmation question on whether you really want to delete it. Clicking "Yes" leads you back to the "New Filter" Screen, with a new filter named "My Filter".

I don't know whether this is the same filter I was just trying to get rid of, or whether it got rid of the old one, and now is making a new one with the same old name. Either way, I'm stuck.