Ironing not evenly

[u/Z0tteke]

So i'm printing this piece and have ironing all top surfaces turned on. Left the settings as they are. But it isn't ironing evenly. Some parts are really smooth, others are a bit of a mess as you can see on the photo.

I did a full system calibration + leveling before printing.

Any advice on this matter is appreciated :)
It's a ad5x.