When you move an annotate box that contains OPs, those OPs become un-aligned from the network grid. However, newly created OPs in the box are aligned to the network grid. So then you end up with two ‘grids’: one of the annotate box (pre-existing OPs), and one of the network (new OPs):
The ‘old’ OPs are now aligned somewhere between the network grid, but will snap back to the network grid if moved.
If the annotate boxes snapped to the network grid upon their creation, that would be one way to avoid this. It’s not a big deal on paper, but my brain is bothered enough that it made this RFE… 