New data not showing when addning new data to already created elasticsearch indices

Hi, I am using elasticsearch 6.6.

After successfully using by 10 days, i am getting now an issue with the elasticsearch indices.
I am adding new data to to my already created index by bulk and it is implemented successfully multiple times but as i can see that new data is there while i have successfully updated the data on index.

And if i choose to create new indice and populate the records on that then all is working very fine.

means the problem is only with data that i am populating to already created indices.

If someone with the same issue ?

You have to refresh the index after making changes in order to make those changes visible. You can also set this option on an indexing request.