why is so much of my action points greyed out?

[Yoinkyz]

i have 4 action points and im walking on tundra biome it says it costs 1 movement on the tundra tiles. i can only move twice?

i thought i understood the greying when i was in the mountains it made sense it costs 3 movement plus 1 with snow.

i dont understand doe is why tundra is costing me seemingly 2 movement. is it based on my slowest unit in the army or something?

[Draken]

Yes. Greyed out action points means that the commander has still action points, but some of the troops or other commanders they are dragging around are out of them.
You can still cast rituals with greyed out action points.
Or leave the slower troops behind.

If you have a fast commander (4 action points) you will always have some greyed out points unless you only have units that have the fast trait.

The same happens if you combine two armies, one of which has already used up all their movement.

[Yoinkyz]

ye makes sense.