Hi John,
That was first introduced in 3.0, but when you are using 2.92, that means, you were already using the Fixed Radius, because that was the only option…just wasn’t called that way untill later, when a new algorithm for Random Walk was added.
It was just, that I have seen that issue before with both my own models as well as with other peoples and then the switch to Fixed Radius helped…
It is going to look good! The next few lessons will take this a lot further into realism (with a lot less effort!).
Keep us posted.