Stair Brush parameters reset orientation

After creating my room and adding in some (linear)stairs, I decided to finetune it afterwards.

But: everytime I change a parameter (step size, number of steps etc) it resets the orientation (Z rotation) of my stair.
As this is kinda annoying, I was wondering if A: is this suppsed to happen or a bug?, and B: is there any way to stop this from happening?

I’m having the exact same issue. Has anyone figured this out?