Offset tracking in SNAP does not show the right results for images after March 31 2018 in spite of updating SNAP

Hello all!

I am wanted to know if there are any changes in the SAR images after 31 March 2018 because the offset tracking results are not proper even after following the right procedure and updating SNAP. The output images are not as desired there are strips of high values in the image. How can we get the right results for offset tracking?