Flickering screen when pressing back button on IOS

Hi,

  1. SDK Version: Expo 41
  2. Platforms: Android/iOS
  3. Tag : “FlickeringScreen”

With the Expo SDK v40, it works fine, but when upgrading to SDK v41, I encounter a flickering screen when pressing “back” button using react-navigation v4. The flickering screen doesn’t happen at all, but being occasionally. May you advise to overcome this problem?
Thank you for your help.