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Why i cannot get both of the units?

Uncle

Warcraft Moderator
Level 73
Joined
Aug 10, 2018
Messages
7,877
The only time you can use (Picked player) is inside of a Player Group action:
  • Player Group - Pick every player in SOME_PLAYER_GROUP and do (Actions)
    • Loop - Actions
      • Game - Display to (All players) the text: (Name of (Picked player))

You're NOT using a Player Group action here so it doesn't know who the (Picked player) is:
  • Unit Group - Pick every unit in (Units in (Playable map area)) and do (Actions)
    • Loop - Actions
      • Set b[(Player number of (Picked player))] = (Picked unit)

Instead, you should be getting the Player number of the (Owner of (Picked unit)):
  • Unit Group - Pick every unit in (Units in (Playable map area)) and do (Actions)
    • Loop - Actions
      • Set b[(Player number of (Owner of (Picked unit))] = (Picked unit)
 
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