Some Vehicles aren't allowing me to adjust my camera height for the driver side

So you know how you have keybinds for whenever you wanna change your camera height or adjust your seat height? Most of the time it works, but mostly for some mods it doesn't work. I tried checking why, but I couldn't find out what was enabled or disabled that was keeping me from changing the camera/seat height of some mods

 

I am going on a limb, that function is just not coded into the mod. Maybe you could DM the author to verify?