Passages not spawning after bosses (The Binding of Isaac)

In theory, after defeating the bosses (and killing someone a certain number of times), passages to other floors should appear (cellar, flooded, and so on). But, right after the start of the game, these doors never appeared for me, but stupidly with some kind of randomness it goes to some room (I jump into 1 passage after the bosses,) (adjusted for the chapter: that is, in the first chapter it is a cellar, basement and burning basement) Of the mods, there is an external and that's it. What the hell is wrong?