Extract changes only not working properlly from last two runs onwards?

Summary:

Extract changes only not working properlly?

Content (please ensure you mask any confidential information):

Hi Team,

I have an issue with hcm extract changes only.

In my organization we have one of the extract for Assignment. And this was created and scheduled on daily basis from almost 3 yeasrs back.

It will export the data like incremental changes from fusion to hrms. When ever any assignment modification or new records created only those records will export from fusion to hrms.

As of now it is working fine as the same condition.

But yestarday onwards it is not working as expected.