The image below presents the problem. Although my heightfield is above, the robot pass through it and goes below:
Screenshot:
![Image](https://i.ibb.co/S5w7qYB/height-example.png)
My scene and image being used for the heightfield:
https://drive.google.com/drive/folders/ ... sp=sharing
I have done other heightfields similarly in previous releases and it didn't had this problem.