Spawning problem "Invalid Models"

[Godheim]

Hoi/Hello/Hæ,

So like many, i have the same "Invalid Model" problem.
Spawning in Native trainer does not work.
I've looked on this site and found a few solutions that i gave a try, to no avail.

I've downloaded the following

*The four wheeled Pounder : https://www.gta5-mods.com/vehicles/one-axle-pounder
*Roadkiller : https://www.gta5-mods.com/vehicles/brute-roadkiller-add-on
*Bravado Duneloader Crew Cab : https://www.gta5-mods.com/vehicles/duneloader-crew-cab-replace
*Duneloader Single Cab & Crew Cab 6x6 : https://www.gta5-mods.com/vehicles/duneloader-6x6#comments_tab
*TLAD Regina Sedan : https://www.gta5-mods.com/vehicles/tlad-regina-sedan-replace
*Glendale Station Car : https://www.gta5-mods.com/vehicles/glendale-station-wagon
*Reliant Robin : https://www.gta5-mods.com/vehicles/reliant-robin-mk-1-replace-addon
*1973 Oldsmobile DELTA 88 : https://www.gta5-mods.com/vehicles/1973-oldsmobile-delta-88

The roadkiller & the four wheeled Pounder work (Although the pounder sometimes still crashes, probaply because of my settings in Native trainer)
All the others ingame give an "Invalid Model" text.

I've followed everything in the readme files of all the vehicles in question, so what the proble exactly is?

Guess i must have done something wrong :$.

Friendly greetings,
Godheim.

[Godheim]

Is there anyone who knows what to do?

I've tried a few things suggested in other Invalid model topics, mostly on this site but nothing happens.
Anyone who can help me?