Wrong camera view when using "gripper_pov" view to render images

[Aoyama7Hai]

I am using metaworld (pip show version = 2.0.0) try to get different camera views as shown :

but is seems like the camera with camera_name='gripper_pov' or camera_id='5' renders in a wrong view

Should this view seems like this one (figure 1.a in other papers) ?

How to solve this problem? I don't know the causes of this problem, thank you !

[Aoyama7Hai]

By the way, when I try to set 'caemra_id' = 4 , the rendering image like this:

It seems like the image is upside down, maybe this clue can be useful to figure out the question.