Does anyhave has an idea why the A1 Mini does that?
It looks like a Primitive was added & it wasn’t centered correctly.
My first thoughts were stepping, then i found this article about layer shifting
and could it be being caused by compensating for the cone shape *
check the depth of the holes. They may be slightly above or below the surface. If everything is lined up flush, the groove you are seeing inline with the holes should disappear.