So when my first post where I mentioned this was flagged as duplicate because of its main topic, I'm creating a new one and now I'm adding videos.

Android players on Android 12 or newer can't access game files because of some stupid files security change in Android 12. This change is disabling option to grant access to game files for external explorers and in default files app it doesnt let you edit/copy and paste files to the game directory. This makes impossible creating and immediately testing Add-Ons, Fixing stuff that can be fixed only in game files, exporting worlds and RPs/BPs and many more things. Sometime around 2023 it was possible to bypass this change and give external explorers access to game files by uninstalling updates of default files app, but this is not possible anymore. I assume that only one who can fix it is you (by changing the game files directory (for example back to one that was used before 1.18.0) or investigating in it and finding other solution) or Android developers themselves but I don't think they will. This problem makes game nearly unplayable in some ways, and it does break my heart that we are unable do many things we were able before.

I hope you find a way to solve/fix it and we'll all be happy again
Thank you for everything <3