Map Shading for Multiple Players

Apologies if this is a silly question, but does Map Shading ‘sync’ by default? I have buttons on the main map of the Malifaux Module to turn on/off three different types of deployment shadings (Custom Images). After a bit of testing both players (in an online synced game) can turn on and off the deployments independently, but the other player doesn’t see it. Here is one of the Map Shading dialogs -

[attachment=0]Screen shot 2011-06-21 at 12.23.42.png[/attachment]