Enemy movement in the Replays?

[Mr Grumpy]

Actually the same thing just happened to me during a Lodz EP14 scenario, I didn't know where the much feared German Guard division was lurking and I had one Russian unit with a LOS to some high ground to my front, this unit was assaulted back by regular German units but because of its LOS from the start of the turn I was able to spot Guard units moving up in hex's I no longer had a LOS on, so on this occasion the quirk worked in my favour!