Tyder

When you install NVE it adds it's own dlcpack that has to do with cars that is most likely "overwriting" any cars that you are trying to install.
I would go to the dlclist.xml (mods\update\update.rpf\common\data) and try removing the NVE_vehicles line and then see if you are able to see your replacement cars in game.

If you don't want to remove the edits made to cars with NVE then you could also go to mods\update\x64\dlcpacks\NVE_vehicles\dlc.rpf\x64\vehicles.rpf\
and remove the files for cars that you are trying to replace. 

AmbientSpawn.MaxCopsInArea=0
AmbientSpawn.MaxSpawnedCopsInArea=0 (added in 0.4.2)
 
 

Fixed it 
1)set GTA5.exe to windows7 compatibility mode
2) copy & past d3d11.dll in main dir
3) rename d3d11-copy to d3d12.dll (make sure you have both d3d11 and d3d12 in dir)
4) edit enb local and change the Proxylib to d3d12.dll instead of d3d11
5) Now start your game it should work good without crashes
if you want SSLA(Sirensettinglimitadjust) to work you need to remove the compatibility mode from gta5.exe and no it wont crash as long as you do step 3 tp 4 if you have enb

maybe it's because mode (NoMoreMelee) if u have it!

Yes, you can disable random chases:
try changing this setting in the LSPDFR (.ini) file:
Ambient.DisableEscapedSuspectEncounter = true  
 

In your GTA directory, navigate to lspdfr and open the lspdfr INI.  Add this on a new line
 
Chase.DisableCameraFocus = true

Add this to your LSPDFR.ini located in GTAV/LSPDFR: Ambient.DisablePlayerHolsteringActions = true
That disables the new LSPD:FR holster animation. 

Sorry for the extremely late reply, this usually happens to me when I have Cop Holster installed *without* editing lspdfr.ini
 
Add this line to the lspdfr.ini and see if it fixes your issue:
Ambient.DisablePlayerHolsteringActions = true  

Had the same issue. For me, it ended up being GeForce overlay was causing RPH not to load. Once I turned off the overlay, game loaded without any problems