Cypher, don't worry, its not impossible. A local function is a function which executes LOCALLY, meaning, local to the client which called the function. When you executed the function in the debug window, it executed locally for you. This is why you saw the effects, and no one else on your server did.

In order to have the fog appear uniformly for all players, each client needs to execute the function. This might be a good place to start: http://community.bistudio.com/wiki/Multiplayer_scripting

Since setFog is a local function, the fog appearing only for you IS the correct behavior. Once again, I do not think this is the proper venue to ask this question (though I realize you thought at first the function was misbehaving). You would get more help, and quicker, if you ask this question on one of the many editing communities for this game. Good luck

I'm questioning the relevance of this issue, not asking for clarification. The purported issue is that the new signature of setFog is a local function (as your test seems to indicate). Given that the old signature of setFog is local, this would hardly be surprising or counter intuitive. So I don't see how "both signatures of setFog are local functions" is an issue.

From the BIS wiki: Each client and the server can have differing fog values. (See: http://community.bistudio.com/wiki/setFog)

This is not a bug. You probably shouldn't report an issue to ask a question about scripting, especially considering that the answer is already on the wiki.

Finally got steam to update the Arma3 alpha to 0.56.104788. "Land_i_Shop_02_V1_F" still has no exit.

It seems that the AI can begin walking in circles endlessly regardless of waypoint type (not just a Get In order or waypoint). An entire group may become hung because their leader or a group member is walking in circles, unable to reach a Move waypoint.

It is difficult to reproduce this reliably, but if you send a large number of groups (each with many members) through Agia in combat mode you will eventually find some stragglers who are hung up because a group member cannot navigate properly, and that group member will most probably be walking in small circles.