GetLocalPlayer() desync

[Diehard@Azeroth]

ok basically in my system a sound can be played individuall for each player, so GetLocalPlayer() does work partly, but if two players want to play the same song, it functions incorrectly, meaning the song doesnt even play or plays partly. Here is an example trigger of what i mean:

• RestartSound
  • Events
    • Time - MusicTimer[1] expires
  • Conditions
  • Actions
    • Custom script: if GetLocalPlayer() == ConvertedPlayer(1) then
    • Sound - Play Music[ScrollMusicInt[1]]
    • Custom script: endif
    • Countdown Timer - Start MusicTimer[1] as a One-shot timer that will expire in (Length of Music[ScrollMusicInt[1]]) seconds

I did use a hashtable before this, but there was a desync bug with loading hashtable players using localplayer, but nvm that, so anyways i had to make timers like this for every player 1-12. can you tell me how to make this desync work correctly fully?