Calibration Failing on CSK 2nd Generation

Hi dears,

I’m appliying image as a generic graph. (Calibration sigma0, TC without normalisation, S1tbx 8.0.5)

It works usually well, but I’m facing an issue with CSK 2nd generation, as you can see here under, on the left without Calibration step, on the right the original graph (figure1).

So, is that known that CSK 2nd generation cannot be Calibrated/ not integrated yet in SNAP ? The same issue happened with a CSK 1st generation WideRegion mode.

Many thanks!