Movement speed

[Jon.Topps]

I'm trying out scenarios, which I haven't really done much before.
I'm playing Mongols, and I don't understand some of the movement things.
I have a horse with 5/5 movement, it travels from a hill outside my territory, to a forested hill in my territory, then another forested hill in my territory. This used all my movement points. I must be missing something, because I thought rough terrain like hills/forest only cost 2.
Things like the great wall can slow you down, and rivers cost 3 I believe, but neither of these were the case.
Is there some other element holding back movement points that I'm not aware of? I'm trying to play on deity, so I definitely need to understand these mechanics.
Thanks!

[G-Man]

Forests add another point of movement cost on top of the hill for a total of 3. You usually don't notice this since most units only have 2-4 movement points anyway. I don't know about the great wall or rivers, I think rivers are supposed to use all your remaining movement points, but the Mongol scenario was made before the two expansions so maybe that has something to do with it.

[Jon.Topps]

Ah yeah, I guess if hills AND forest both reduce by 1, that would make sense. I never thought it worked that way after all these years.

I'm also having an issue in the Mongol scenario, where I'm pillaging a cotton field, and my unit doesn't heal at all. It says in the UI that it will heal 25 points, but the health doesn't go up at all. Is there a hidden rule that Keshik can't heal or something? I thought this would definitely be part of the strategy.