The point cloud results obtained using the two methods are inconsistent

Hello, I encountered a confusing situation that I couldn’t figure out. I try to get point clouds using two different methods , however I got inconsistent results which do not meet my expectations.
My codes

Results

Could anyone give me some suggestions
Thanks

I’m using Isaac Sim 2022.2.1. The result using method 2 seems correct

Are you on the latest Isaac Sim?

No, im using Isaac Sim 2022.2.1