Player set in micheal ped & sync broken

[dunehimself]

What happened?

The bug occurs in several stages and different forms. First, players spawn as Michael instead of their correct character. Players who are inside vehicles are invisible to others, but once they exit the vehicle and are on foot, they synchronize correctly, as shown in the video. There are also vehicle state synchronization issues, such as a vehicle's color changing unexpectedly when a player enters it, even though no change should occur. In addition, players are not always visible to each other, and voice chat/audio does not consistently work properly.

preview desync : https://youtu.be/HwA3NsHpga0

Expected result

Players should spawn with their correct character model, remain visible and properly synchronized whether they are on foot or inside vehicles, vehicle properties (such as color) should remain unchanged unless intentionally modified, and voice chat should work consistently between all players.

Reproduction steps

Join a FiveM server with at least two players.
Spawn and observe that players spawn as Michael instead of their correct character.
Enter a vehicle and have another player observe your character.
Notice that the player becomes invisible while inside the vehicle, the vehicle color may change unexpectedly, and voice chat/synchronization issues occur.

Importancy

There's a workaround

Area(s)

FiveM

Specific version(s)

FiveM/ b31550/Lin

Additional information

No response

[Gogsi]

Hey a few months ago there was a crash exploit that involved cheaters spawning multiple player peds. This script was being spread around as a mitigation for it

local playerPeds = {}

AddEventHandler("entityCreating", function(entity)
    if GetNetTypeFromEntity(entity) == 11 then
       local src = NetworkGetEntityOwner(entity)
       if src == -1 then
          CancelEvent()
          return
       end

       if playerPeds[src] then
          print(("player %i attempted to create multiple player peds"):format(src))
          CancelEvent()
          return
       end
       playerPeds[src] = entity
   end
end)


AddEventHandler("entityRemoved", function(entity)
   local src = NetworkGetEntityOwner(entity)
   if src == -1 then
      CancelEvent()
      return
   end

   if GetNetTypeFromEntity(entity) == 11 then
      playerPeds[src] = nil
   end
end)

If you have that code remove it immediately, it seems to cause issues such as the one you described.

[Gogsi]

Additionally if you have code to block the player_zero/225514697 model like shown below (or configured in your anti-cheat) please remove it. From my testing a player spawning in will occasionally trigger entityCreating with the player_zero model, before they are properly handled by spawnManager. Cancelling that may have unintended consequences.

AddEventHandler('entityCreating', function(entity)
    local model = GetEntityModel(entity)
    if model == `player_zero` then
        print("Prevented player_Zero from being created.")
        CancelEvent()
    end
end)