For example when doing a pursuit, some police vehicles that respond disappear after the suspect is arrested, so you see random cops walk away instead of driving away with their vehicle.

The vehicles just disappear randomly.

EDIT: Just saw this video and at 1:30 you can see the backup unit responding, but their car disappear at 2:05.

https://www.youtube.com/watch?v=XvGyrJAs8YQ

 

 

Edited July 23, 201510 yr by Proist

Yep. It happens. No fix for it yet. 

I feel like this is an issue with GTA V itself. Even without mods in Story Mode and in GTA Online I see vehicles pop in and disappear right after I look away and back again. However in LSPDFR your own car rarely disappears, at least in my experience.

Edited July 23, 201510 yr by iansonwheels

I believe that is an issue with GTA V itself, and not LSPDFR. most likely because they remove vehicles to make room to add more vehicles in traffic. Although the devs made it so your patrol car wouldn't disappear when you get far away or look away from it so they could change the way AI cars appear/disappear in future releases.

Yep. It happens. No fix for it yet. 

I presume it is not impossible to fix?

I presume it is not impossible to fix?

Probably not - But as the other said, it's more of a GTA V bug / feature. 

There's always my plugin Entity Persistence if you're interested, but that does come at a performance cost.