Cannot change modkit ID number

Hey, I’m having a problem here and I don’t know if I’m just imagining this or if I’m missing something.

A long time ago, I added a few addon cars to my server, and they had modkit IDs around 378, 379… that area. Now that the Casino vehicles have been released, they have those same modkit IDs.

Simple enough, I tried changing the modkit IDs of the addon cars (the ones I already had on my server),

I changed the name of the modkit in carcols.meta
I changed the modkit ID number in carcols.meta from 378 to 478
I changed the name of the modkit in carvariations.meta
I cleared the server cache
I deleted my local priv folder

No matter what I try, the modkit IDs of the addon cars stay the same, and the Casino vehicles can’t be modified as a result of having the same modkit IDs.

I believe they’re supposed to go up to 1000. Is that wrong? I’m at a loss. I used to be able to change modkits with little trouble, so I must be missing something here.

In-game:


carvariations.meta:
image

carcols.meta:
image