I introduced a top entrance on my hive about 3 or 4 weeks ago, but the bees refuse to use it. I guess they didn't read the manual I supplied. The other two hives use the top entrance no problem. Just wondering what the issue could be. This hive did not have a top entrance for over a year, but you'd think the bees would not remember that The entrance is a 1" hole in the bottom of the first super that lines up with short tunnel through the wall of my bee shed. There is a small landing board on the outside.