filter not working properly in dataTable of jQuery

HI,,

 

in 1st page

 

 

 

going page 5

 

 

 

changing entries from 10 to 50 as like below

 

 

 

output result would be-

 

 

 

Now moving to page 1 

 

  

 Result is not changing ..rest of the things are working fine

as it showing 1 to 50 entries but its not showing correct.

 

its displaying same like result as previous step.

 

 

 

Anybody can help on it