I am trying to do some quick manual editing of a LiDAR dataset. An area of water has a mixture of points classed as water and ground. I'm trying to just select the points interactively, then change the classification code to water and apply it. This works at the current view scale, but when I zoom in, more points render and some of them are ground points. Note, I have already unchecked "Visible Points" and all point types are marked as selectable. Despite this, if I make a selection, then zoom in, it does not appear that points not rendered at the smaller scale are being selected. Is there some other setting that I have missed?
Selection made at small scale (note Visible Points is not marked so all points in selection area should be selected)
After zooming to larger scale and more points render, a large number are not selected.