Topographic phase removal results

plz see the screenshot of result
there are violet shadowa around the image …is this normal or there is some error …
I took IW images
process that i followed is
1.TOPS coregistered IW3
2. form interferogram
3. applied deburst
4. removed topographic phase


No, it is not error, but it means that the lines of the slave image are less than the numbers of lines in the master images, OR might be there are No data are available (DEM) for this area.

thank you sir for your help