Hi all,
I’ve had this ender 3 for a little while now but I’m still kinda new to some issues like this one.
Is this a belt or Z axis issue? I have new belts but haven’t installed them yet. That the layers above and below are fine but the middle layers aren’t makes me suspect something with the Z axis.
I have a BTT SKR Mini E3 V3 board, the red anodized Creality upgraded feeder, biqu microprobe and glass bed.
Here’s a zoomed out picture.
(don’t mind the stringing, I think I need to adjust my retraction settings lol)

