I've been struggling for months with this issue.
I used to have a tad more than 400 modded cars in GTA V, and after reinstalling Windows and reinstalling the game, I can't get it to have any more than 23 addons (I've tried multiple different addons, none work after the 23 mark).
I only have the Simple Trainer and Native trainer mod as well as what is required to make them work (AsiLoader, ScripthookV, ScripthookVDotNet).
So, as usual, I change the gameconfig (in the mods folder) to this one https://www.gta5-mods.com/misc/gta-5-gameconfig-300-cars,
drop the heap limit adjuster (https://www.gta5-mods.com/tools/heap-limit-adjuster-600-mb-of-heap) and packfile limit adjuster (https://www.gta5-mods.com/tools/packfile-limit-adjuster) into the root of the game, but it doesn't seem to be working.
I also tried this gameconfig (https://www.gta5-mods.com/misc/gameconfig-xml-dilapidated) but got the same dissapointing results.
I then tried the alternative heap adjuster (https://www.gta5-mods.com/tools/heapadjuster) with no success.
Also tried reinstalling the most recent .NET framework 4.8, and Microsoft Visual C++ 2015-2019, again, with no success.
Basically, the game crashes during startup (after selecting "Solo mode") and shows no error message (apart from the generic "GTA V has exited unexpectedly")...
I really ran out of ideas on this one. Does anyone have a suggestion to offer?
My asiloader log : https://pastebin.com/uDHxgSKq
My ScripthookV log : https://pastebin.com/NTRkWXck
I'm running GTA V's latest version.