I noticed this when using a tamed Wolf as a scout to reveal the map.
My Wolf has 5 movement. If I move my Wolf one step at a time, the revealed map shows for each step. I get a sort of thick column of map reveal.
If I click 5 tiles away, the Wolf moves 5 tiles, and then the map reveals from that position. None of the interim steps are revealed. My Wolf stops looking where she's going just because she's running! I get a new square of reveal instead of a filled in column of reveal.
It seems to happen to any large movement unit. The Wolf just seems to be a sort of worst case example. Diagonal movement also aggravates the situation.
