I have blocked off a couple months this fall so that I can travel, however when I go to look at October and November, Airbnb has unblocked a few of the dates. I am puzzled and concerned as to why the time does not stay blocked. I am concerned about going on vacation and having someone reserve my place while I am gone. This would lead to a very unhappy traveler arriving to find the lights out and the door locked. I only allow booking up to 3 months out, and the dates opened seem to be 3 months out. I have manually blocked all of October and November. What else can I do?