[Threshold]

Your player's camera is being SET to the player's position.

pawn Код:

public OnPlayerRequestClass(playerid, classid)
{
    SetPlayerPos(playerid,1544.7557,-1675.3905,13.5493);
    SetPlayerFacingAngle(playerid,269.8190);
    SetPlayerCameraPos(playerid,1539.7557,-1675.3905,13.5493);
    SetPlayerCameraLookAt(playerid,1544.7557,-1675.3905,13.5493);
    return 1;
}

Try this, you cannot have SetPlayerCameraPos and SetPlayerPos at the same coordinates, otherwise the player will just simply spawn above the camera, out of view.