FlashList data jumping issue

[ArseniiLyzenko]

I am trying to build a screen similar to the Calendar screen in the Microsoft Teams mobile app. I pass a year of empty days with preloaded calendar events for a couple of months to FlashList. If the user scrolls beyond those couple of months, I fetch new calendar events and replace FlashList with the new data.

However, the problem is that when I pass the new data, the list “jumps” to another day. This jump can be either backward or forward and varies in distance, essentially moving away from the spot where the user stopped.

What are the best practices for handling this scenario?