I don't know if I'm just "lucky" or if this is a widespread problem but I recently decided to use the D&D5E 2024 character sheet's builder and found that after using said builder I could no longer add or change anything in the sheet except through the builder. If I had known I was going to be 'my way or the highway' with no chance for a do-over without deleting the sheet and creating a new one I would have never used the builder in the first place. Maybe put up a warning when someone tries using the builder or, better yet, let people customize a sheet after using the builder.