NRF PPK2 can't to show the correct current compare with my old one

Today I bought a new NRF-PPK2, but compare with my old NRF-PPK2.

For the old and new PPK2, I use the same DUT.

It can't show the same current with my old one? can you help to advise?

Old NRF-PPK2 have a stable current, but the New one didn't have a stable current.

Is there any a way to calibrate?

The following is my old PPK2, it is normal.

The following is my new PPK2, it is abnormal. The current is not stable and a large current gap.

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