Apologies if these have been identified.
When using the helicopter, the way it's controlled seems to change mid flight. So I'll be happily fying forward, and it'll then go crazy and start lifting up, then nose diving. Seriously bad, it's making me want to use cars even if takes longer.
The ground rendering is iffy, I'll see the mud showing as flat, then it'll render and the ground becomes 3d as it should be.