Banding/shift in layers with features

Hey guys, I’m getting some banding on the layers that have holes in them and I have no idea how to fix it. I’ve had the issue in the past but it was never this prominent. I’m using orange petg HF on my X1C with AMS.


I thought the issue could be the belts but they seem to have the same tightness (could be wrong), and all the color scheme views in the slicer show no differences between the layers in speed, flow, or temperature, but there is a slight difference in fan speed at the tops/bottoms of the holes. Does anybody have any suggestions? Thanks in advance, hopefully this was enough info for you guys.