Table Pagination - Returned SDP is skipping records

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Table Pagination - Returned SDP is skipping records

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Hi,

We have scenario where based on search criterion, returned resultset is being populated in table grid. For one of the criterion, it is returning 59 records. 

There is a date column which is default sorted as descending - showing NULLs first.

In the backend - Network tab, clicking on Search is returning 59 records in 3 sets 25, 25 , 9 - default limit of fetching... But 3 of the records are coming as duplicate in 1st & 2nd set.

But when we sort it using some other column or this date column in ascending order, it is returning correctly.