PET Volume statistics

Operating system: Windows 10 enterprise
Slicer version:Slicer 4.13.0-2021-12-15

I am using ‘segment statistics’ to calculate PET volume parameters.

PET volume statistics like SUVmax, SUVmin, SUVpeak appears as below which seems to be wrong.

This is how different sub-folders are arranged within the main folder.

Could anyone please point out where I am going wrong?

Thanks in advance.