Hi Nitu ,
I was facing same issue that scroll was working fine but content was not updating and blank screen was coming.
This issue was resolved by using this , you just have to use flick like this .
TouchActions flick = new TouchActions(driver).flick(driver.findElement(By.id("YOURS ID HERE")), 0, -730, 100);
flick.perform();
I hope it will help you also .