PlaySoundFromEntity Limitations

Here is a log of what GetSoundId returns, I spawn 100 emergency vehicles, activate there sirens, never deactivating. At car 99 I am unable to change tones constantly.

[    443828] [    GTAProcess]             MainThrd/ Starting: 0     //Testing toggling siren
[    444328] [    GTAProcess]             MainThrd/ Stopping: 0
[    444328] [    GTAProcess]             MainThrd/ Starting: 1
[    446250] [    GTAProcess]             MainThrd/ Stopping: 1
[    446250] [    GTAProcess]             MainThrd/ Starting: 0
[    446672] [    GTAProcess]             MainThrd/ Stopping: 0
[    446687] [    GTAProcess]             MainThrd/ Starting: 1
[    451219] [    GTAProcess]             MainThrd/ Stopping: 1
[    451219] [    GTAProcess]             MainThrd/ Starting: 0
[    451594] [    GTAProcess]             MainThrd/ Stopping: 0
[    451594] [    GTAProcess]             MainThrd/ Starting: 1
[    462250] [    GTAProcess]             MainThrd/ Stopping: 1
[    462265] [    GTAProcess]             MainThrd/ Starting: 0
[    468500] [    GTAProcess]             MainThrd/ Stopping: 0
[    468500] [    GTAProcess]             MainThrd/ Starting: 1    //Begin spawning cars
[    482219] [    GTAProcess]             MainThrd/ Starting: 0
[    484125] [    GTAProcess]             MainThrd/ Starting: 2
[    486219] [    GTAProcess]             MainThrd/ Starting: 3
[    488250] [    GTAProcess]             MainThrd/ Starting: 4
[    490656] [    GTAProcess]             MainThrd/ Starting: 5
[    492390] [    GTAProcess]             MainThrd/ Starting: 6
[    494437] [    GTAProcess]             MainThrd/ Starting: 7
[    496312] [    GTAProcess]             MainThrd/ Starting: 8
[    498172] [    GTAProcess]             MainThrd/ Starting: 9
[    500140] [    GTAProcess]             MainThrd/ Starting: 10
[    502265] [    GTAProcess]             MainThrd/ Starting: 11
[    503875] [    GTAProcess]             MainThrd/ Starting: 12
[    505937] [    GTAProcess]             MainThrd/ Starting: 13
[    508312] [    GTAProcess]             MainThrd/ Starting: 14
[    510187] [    GTAProcess]             MainThrd/ Starting: 15
[    512562] [    GTAProcess]             MainThrd/ Starting: 16
[    514625] [    GTAProcess]             MainThrd/ Starting: 17
[    516750] [    GTAProcess]             MainThrd/ Starting: 18
[    518640] [    GTAProcess]             MainThrd/ Starting: 19
[    520344] [    GTAProcess]             MainThrd/ Starting: 20
[    522437] [    GTAProcess]             MainThrd/ Starting: 21
[    524656] [    GTAProcess]             MainThrd/ Starting: 22
[    526765] [    GTAProcess]             MainThrd/ Starting: 23
[    528890] [    GTAProcess]             MainThrd/ Starting: 24
[    530515] [    GTAProcess]             MainThrd/ Starting: 25
[    532453] [    GTAProcess]             MainThrd/ Starting: 26
[    534531] [    GTAProcess]             MainThrd/ Starting: 27
[    536562] [    GTAProcess]             MainThrd/ Starting: 28
[    538500] [    GTAProcess]             MainThrd/ Starting: 29
[    540765] [    GTAProcess]             MainThrd/ Starting: 30
[    542969] [    GTAProcess]             MainThrd/ Starting: 31
[    544734] [    GTAProcess]             MainThrd/ Starting: 32
[    546640] [    GTAProcess]             MainThrd/ Starting: 33
[    548719] [    GTAProcess]             MainThrd/ Starting: 34
[    550937] [    GTAProcess]             MainThrd/ Starting: 35
[    552625] [    GTAProcess]             MainThrd/ Starting: 36
[    554687] [    GTAProcess]             MainThrd/ Starting: 37
[    556703] [    GTAProcess]             MainThrd/ Starting: 38
[    558828] [    GTAProcess]             MainThrd/ Starting: 39
[    560500] [    GTAProcess]             MainThrd/ Starting: 40
[    562406] [    GTAProcess]             MainThrd/ Starting: 41
[    564562] [    GTAProcess]             MainThrd/ Starting: 42
[    566578] [    GTAProcess]             MainThrd/ Starting: 43
[    568859] [    GTAProcess]             MainThrd/ Starting: 44
[    570515] [    GTAProcess]             MainThrd/ Starting: 45
[    572562] [    GTAProcess]             MainThrd/ Starting: 46
[    574390] [    GTAProcess]             MainThrd/ Starting: 47
[    576390] [    GTAProcess]             MainThrd/ Starting: 48
[    578484] [    GTAProcess]             MainThrd/ Starting: 49
[    580375] [    GTAProcess]             MainThrd/ Starting: 50
[    582312] [    GTAProcess]             MainThrd/ Starting: 51
[    584656] [    GTAProcess]             MainThrd/ Starting: 52
[    586531] [    GTAProcess]             MainThrd/ Starting: 53
[    588390] [    GTAProcess]             MainThrd/ Starting: 54
[    590375] [    GTAProcess]             MainThrd/ Starting: 55
[    592328] [    GTAProcess]             MainThrd/ Starting: 56
[    594344] [    GTAProcess]             MainThrd/ Starting: 57
[    596297] [    GTAProcess]             MainThrd/ Starting: 58
[    598609] [    GTAProcess]             MainThrd/ Starting: 59
[    600672] [    GTAProcess]             MainThrd/ Starting: 60
[    602734] [    GTAProcess]             MainThrd/ Starting: 61
[    604734] [    GTAProcess]             MainThrd/ Starting: 62
[    606656] [    GTAProcess]             MainThrd/ Starting: 63
[    608578] [    GTAProcess]             MainThrd/ Starting: 64
[    610531] [    GTAProcess]             MainThrd/ Starting: 65
[    612515] [    GTAProcess]             MainThrd/ Starting: 66
[    614437] [    GTAProcess]             MainThrd/ Starting: 67
[    616562] [    GTAProcess]             MainThrd/ Starting: 68
[    618828] [    GTAProcess]             MainThrd/ Starting: 69
[    620875] [    GTAProcess]             MainThrd/ Starting: 70
[    622953] [    GTAProcess]             MainThrd/ Starting: 71
[    624875] [    GTAProcess]             MainThrd/ Starting: 72
[    626812] [    GTAProcess]             MainThrd/ Starting: 73
[    628937] [    GTAProcess]             MainThrd/ Starting: 74
[    630953] [    GTAProcess]             MainThrd/ Starting: 75
[    632922] [    GTAProcess]             MainThrd/ Starting: 76
[    634984] [    GTAProcess]             MainThrd/ Starting: 77
[    636890] [    GTAProcess]             MainThrd/ Starting: 78
[    639062] [    GTAProcess]             MainThrd/ Starting: 79
[    640937] [    GTAProcess]             MainThrd/ Starting: 80
[    642719] [    GTAProcess]             MainThrd/ Starting: 81
[    644765] [    GTAProcess]             MainThrd/ Starting: 82
[    647031] [    GTAProcess]             MainThrd/ Starting: 83
[    649109] [    GTAProcess]             MainThrd/ Starting: 84
[    651125] [    GTAProcess]             MainThrd/ Starting: 85
[    652922] [    GTAProcess]             MainThrd/ Starting: 86
[    655125] [    GTAProcess]             MainThrd/ Starting: 87
[    657031] [    GTAProcess]             MainThrd/ Starting: 88
[    658984] [    GTAProcess]             MainThrd/ Starting: 89
[    661453] [    GTAProcess]             MainThrd/ Starting: 90
[    663234] [    GTAProcess]             MainThrd/ Starting: 91
[    665484] [    GTAProcess]             MainThrd/ Starting: 92
[    667312] [    GTAProcess]             MainThrd/ Starting: 93
[    669172] [    GTAProcess]             MainThrd/ Starting: 94
[    670750] [    GTAProcess]             MainThrd/ Starting: 95
[    672531] [    GTAProcess]             MainThrd/ Starting: 96
[    674750] [    GTAProcess]             MainThrd/ Starting: 97
[    676937] [    GTAProcess]             MainThrd/ Starting: 98
[    679500] [    GTAProcess]             MainThrd/ Starting: 99
[    687922] [    GTAProcess]             MainThrd/ Stopping: 99
[    687937] [    GTAProcess]             MainThrd/ Starting: -1   //Failures Begin
[    695531] [    GTAProcess]             MainThrd/ Stopping: -1
[    695531] [    GTAProcess]             MainThrd/ Starting: 99
[    696812] [    GTAProcess]             MainThrd/ Stopping: 99
[    696828] [    GTAProcess]             MainThrd/ Starting: -1
[    698062] [    GTAProcess]             MainThrd/ Stopping: -1
[    698078] [    GTAProcess]             MainThrd/ Starting: 99
[    698531] [    GTAProcess]             MainThrd/ Stopping: 99
[    698547] [    GTAProcess]             MainThrd/ Starting: -1
[    736844] [    GTAProcess]             MainThrd/ Stopping: -1
[    736859] [    GTAProcess]             MainThrd/ Starting: 98    //Deleted vehicle | Working Below
[    738469] [    GTAProcess]             MainThrd/ Stopping: 98
[    738484] [    GTAProcess]             MainThrd/ Starting: 99
[    739609] [    GTAProcess]             MainThrd/ Stopping: 99
[    739609] [    GTAProcess]             MainThrd/ Starting: 98
[    741109] [    GTAProcess]             MainThrd/ Stopping: 98
[    741109] [    GTAProcess]             MainThrd/ Starting: 99
[    743859] [    GTAProcess]             MainThrd/ Stopping: 99
[    743875] [    GTAProcess]             MainThrd/ Starting: 98
[    748390] [    GTAProcess]             MainThrd/ Stopping: 98
[    748390] [    GTAProcess]             MainThrd/ Starting: 99

Functions:

function SetLxSirenStateForVeh(veh, newstate)      //on siren button
	if DoesEntityExist(veh) and not IsEntityDead(veh) then
		if newstate ~= state_lxsiren[veh] then
			if snd_lxsiren[veh] ~= nil then
				print("Stopping: "..snd_lxsiren[veh])
				StopSound(snd_lxsiren[veh])
				ReleaseSoundId(snd_lxsiren[veh])
				snd_lxsiren[veh] = nil
			end					  
			snd_lxsiren[veh] = GetSoundId()
			print("Starting: "..snd_lxsiren[veh])
			PlaySoundFromEntity(snd_lxsiren[veh], siren_string_lookup[newstate], veh, 0, 0, 0)	
			TogMuteDfltSrnForVeh(veh, true)			
			state_lxsiren[veh] = newstate
		end
	end
end

function CleanupSounds()     //400th tick
	if count_sndclean_timer > delay_sndclean_timer then
		count_sndclean_timer = 0
		for k, v in pairs(state_lxsiren) do
			if v > 0 then
				if not DoesEntityExist(k) or IsEntityDead(k) then
					if snd_lxsiren[k] ~= nil then
						StopSound(snd_lxsiren[k])
						ReleaseSoundId(snd_lxsiren[k])
						snd_lxsiren[k] = nil
						state_lxsiren[k] = nil
					end
				end
			end
		end
	else
		count_sndclean_timer = count_sndclean_timer + 1
	end
end

Resource: [Release] Luxart Vehicle Control
Setup Screenshot: https://i.gyazo.com/95224f5639e0d852a09033abed7aa5ed.jpg

Any ideas?