Phase jump error in output of MultiReference InSAR operators

My workflow is using single swath

S1Tops Split with burst 1 to 3

Next

BackGeocoding > ESD> Multi-Reference InSAR

The output phase thus produced shows a clear phase discontinuity between the burst which remains even after debursting.

I followed this steps upto the unwrapped interferograms as following post steps

Multilook>Goldsteinphase Filtering>Snaphu Unwrapping > unwrapped products

Most of the output produced has the consistent same discontinuity untill the unwrapped product. I used ‘ SRTM 1Sec HGT’ both at BackGeocoding and MultiReference InSAR step

I suspect that It could be due to co registration errors but I did apply ESD to improve co-registration but still not able to solve the issue. Any help will be appreciated

The set of all generated phase diagrams

Need to apply TopSAR Deburst and apply MultiReference operator.

can you share a working workflow to do MultiRefernce and Multi InSAR valid for full SLCs and also for single burst one?