I can't find materials for ground and robot arm. And robot doesn't move after newly training.

[KevinRyu]

Hi,

First, thanks for your codes. I think this is very useful as a ml-agent example. By the way, I have two problems and want to ask questions.

1. As mentioned in title, I can't find materials for ground and robot arm. So, I can see pink ground and robot arm. Can you check and guide the directory of these materials.
2. I trained using the original yaml file. And I checked accumulated reward and loss. I think it seems there are no issues. But robot moves only one time at start and doesn't move anymore. Because I am using newer version and float[] vectoractions syntax in OnActionReceived was chaned. So, I modified this function a little bit. And I checked input variable(ActionBuffers actions and actions.DiscreteActions[]) during running using console print command and got values really doesn't change meaningfully. It was changed slightly.

So, Would you give me some tips or guide to solve this problem?