Cannot get correct image from camera sensors when camera look straight down

Hi team,
I cannot get correct image from camera sensors when camera look straight down. I set camera_location = (0.35, 0.65, 0.75) and camera_lookat =(0.35, 0.65, 0), and I got an all-black picture.
However, when I set camera_location = (0.35, 0.65, 0.75) and camera_lookat =(0.35, 0.651, 0), with just slightly offset, I got the correct image.
What is this about?

Could you tell us a bit more about the application that you’re using, which camera, and what parts of Isaac SDK you are exercising? The extrinsic calibration should not be affecting the image you’re receiving unless I misunderstood what you are describing.

I have the same issue. Manually setting the transform with Gym.get_camera_transform works. However, if a camera is configured to look straight down with Gym.set_camera_location, then the view matrix returned by Gym.set_camera_view_matrix contains nan values and the image will be all black.