Yes, I know this quite well.
There is usually an alpha cat in each household, I have found. And my alpha even sometimes challenges ME.
Especially if all are female. I think males are more tolerant and flexible.
We minimize this with a daily ritual...each cat --I have 3 -- gets a personal treat--something they crave, once a day, and at different times.
Sheba--shrimp in late afternoon
Tippy-- a few TenderVittles at lunch time
Oreo-- her decadent whipped cream at 10am..she is very punctual BTW !!
When I started this, I noticed a huge improvement in the territiorial type behaviors. I can have two now on one cat tree...previously, it was one only to a tree.
We also have a cat door and have the same thing. You know cats go by smell..mostly and they cannot see who is coming in really. And until they do the kissey noses thing that is their ID and greeting. Behind the door, well that is not possible. Also I noticed, esp on vacation, that Tippy will watch the others outside, as if they were new or interlopers....she does not "recognize" her housemates by sight.
That staying and blocking passage is very typical. What I do is lure alpha away and say, "be nice".... she doesn't dare strike out, when I am there.
Eventually they do stop this to a large extent. (so are doorways... in our home alpha must go first)..
It takes patience... and it all depends too on the temperment of the cats.
Ours seem to learn and want to please. Others may not be so cooperative.