mine is laid on the bed flat ( deceptive because its not quite )
i used auto orient on both of the parts shown it lifted the one and rotated the other to its flat side
Yes, this is a bug, and makes auto orient unusable for me. It affects how the top layer is printed, which is visible. Auto orient should not rotate objects on the Z-axis at all.
Also, OP, when posting images, black filament should NOT be your selection to show what’s going on. Change it to bright orange or green or something, dude.