Chromatic champion not given when completed using alts/warband

Gameplay Quests & Achievements
1

So using alts i have completed the achievement by starting the encounter on each platform but the achievement hasnt been given.

afaik with warbands you can now complete achievement in “parts” so using chromatic champions as a example i can do part 1 on one character then do part 2,3 on character two and 4 on another character and it will give ou the achievement

is this not how warband achievements work? all the character are on the same faction which is the only problem i can think of

2

Depends on the achievement.

Look at the achievement on each of your alts. Which colours are ticked for each?

If it’s just one each, as I expect, then first attacks need to be done on one character.

3

so is the loose rule if the achievement is numerical then you can use alts and if it is a tick it has to be done on one character?

4

I’m not sure that Warbands did much about sharing Achievements between characters, and I’m not sure that we can ascribe even loose rules, arapt from sa[arate achieves counting for a meta, ofc.