Game not loading addon cars

Despite my low amount of posts on here, I have been using LSPDFR for around 6 years now, and have always found any problems to be solved by visiting this forum.  With this being said, I consider myself to be very well-versed in the whole GTA modding thing. 

My problem is that after recently coming back to LSPDFR after a 6 month hiatus, and having to update GTA, my add-on vehicles will not spawn.  I've been using the Albo Modding DLC method of adding vehicles for years, and I've put the most recent gameconfig file into my base folder.  I've also ensured the heap adjuster and the packfile limit adjusters have been installed.  I've even gone so far as to try using LML to get those vehicles to load, but in either case, the game says the vehicle has been loaded, but isn't showing. 

Any ideas on what could be preventing it?

Edited June 20, 20223 yr by TudorMD