I am using different issue types like Initiative. However, when I change the color, it just flips back to and doesn't retain the settings. I want to color code my roadmap, and this issue is driving me mad. Are there other ways to change the color, or is there a setting I'm missing?

For a couple I have managed to change the color somehow.
Like this one is yellow

When I look at the child issues, the parent is correct (in yellow)

But on my kanban board it shows in purple which seems to be the default.

What am I missing?
I am trying to create hierarchies with the color coding, so my entire plan is out of the window where few just don't change.
(PS: this is a problem I am facing since weeks, so I have tried to turn it off and on again ...)