Battle display not matching the results in multiplay

[Adept]

How common is this, and what can be done to minimise it.

In our current multiplayer game (now in an extended stalemated endgame, turn 122) we've had three or four turns where the "summary" and actual results haven't matched what is seen in the battle display. Units who seem to live through a battle turn out to have died afterall, and sometimes even the "wrong" side emerges victorious, quite contrary to the battle display.

It's rare but very frustrating. Seems to be happening now that we have more players in our multiplayer matches.