So my Galaxy S7 has recently been updated to Android 8.0 & Samsung Experience v9.0 including the latest update which brings the July 2018 security patches.
However, ever since the update to Andriod 8 I have had problems with the folders on the home screen, every time I exit a folder the folder close animation lags so it looks jittery as it closes. Oddly any folders in the apps tray work fine.
I have tried clearing the cache on the Samsung Experience Home and Services apps. I have also deleted the folder and recreated it with the same apps then different apps but nothing has fixed the issue.