Issue in Subset Operator

Hey all,

Facing an issue with the Subset operator in Snap 10, the following is the graph that I am using for Interferometry:

The Figure below shows the output, that is terrain correct and cropped interferogram (using only IW2 here):

The Green polygon is the Footprint of the master SLC, the Blue polygon is the clipping polygon to which I want to subset my data, and the raster (grey) is the output, my question here is why the clipping operator has not clipped fully here ?
I will be thankful if someone can help with this.

Best Regards