Have you unchecked "Use fixed random seed"? It is under File > Preferences > Test Map
Edit: This doesn't concern your problem, but change the 2 actions "Pick every player......"'s MainPlayers[1] to picked player.
And instead of screenshots, I think it would be better to copy as text and put it in Wc3 tags.
So, Ive changed it so that player 1 makes enemies instead of the variable and then i made the first "Un-ally" action to un-ally blue, the rest are the same except player 1 (red)... In the end the only action that works is player one (red) un-ally player two (blue), none of the random player ones work...
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.