I have a Z Fold 3 that was provided as a refurbished replacement for my previous broken Z Fold 3.

When I restored by backup, all of my folders didn't restore, so I have had to go through and re-create folders and move all the relevant apps into their respective folders.

This has worked perfectly on the internal screen, however there is one specific folder that when I have created the folder and added apps to it, when I lock my phone and unlock and go back to the app screen, the folder is no longer there and the apps that were in the folder are now separate on the app screen

I have tried restarting, turning off the home / app screen and back on again and turning on and off the mirror home and internal screen options and it still happens

Any ideas?