Is it just me ? Also Rider is very slow.
Tried with an empty Unity project with just a script and an empty list:
using System.Collections.Generic;
using UnityEngine;
public class TestException : MonoBehaviour
{
private List<int> emptyList= new List<int>();
void Start ()
{
emptyList[11] = 0;
}
}
JBR 2018.2.3
Unity 2018.2.8f1