I have been making this bread recipe for many months now — over a year? — and often it turns out just fine. But lately it seems every time it is doing this weird thing where the bottom part is very nice but the top part falls apart.
Is it rising too much before going in the oven? Not enough? Some other issue?
Apparently, crumbly bread with a coarse grain and holes has likely risen too long and in too warm a place. Other issues that cause crumbliness are not kneading enough, not mixing enough, or having too much flour.