Hi Tarun,
It's showing because of linkage has been done that way.
The follow of work schedule is as below
DWS(here Break Schedule linked with DWS) --> PWS--> WSR
Now you can go in the reverse order to find out your issue. 1st Check on the WSR which PWS is assigned and then check in the PWS what's week patter is linked based upon DWS(Working and Off day's).
Hope so you will get a clue.
Or else share the WSR details screenshot and PWS details.
Regards,
Sankarsan