Change In Visibility

[Mobhack]

Haven't looked at the file but could be either of:

- smoke has built up in the impact hexes, or intervening ones enough to block LOS (not all smoke is visible as smoke puffs, only those hexes with a reasonable lot of it). Such very light smoke tends to disappear in the admin phase, and it is more of a blocker in lower visibility maps.

- Someone has had a "takes cover" result which can break LOS from his enemies, and so he has to be reacquired all over again. A "hits the dirt" reaction tio fire simply breaks the chain of fire, like a pull-back does.

Cheers
Andy