On mac, cmd + shift + 4 turns your mouse into a screenshot selection tool, for taking screenshots of part of your screen. Moving your mouse in this state should not affect placement, selection, or removal holograms; nor should it affect hover states.
To reproduce: Select a machine (ex, shape miner). Press cmd + shift + 4. Move mouse, the machine moves. Hover over the "count per" info panel, and it pops up. Take a screenshot. Reset, pressing cmd + shift + 4 while hovering over the info panel. Move out of it, and it disappears.
There'd be screenshots, but AFAIK you can't take a screenshot of yourself taking a screenshot.
This might be a standard system compliance issue more than a bug, but I would consider (unintentional) compliance failures bugs.