Don't know about the naming change...maybe some issues with working dependents, who have the same first name as the parent (usually the father)....that has caused problems with folks accidentally overwriting their own file.....using middle initial might eliminate that problem for most cases (but not all).
1) the tilde file ( ~ ), is not always exactly the final one....it is purposely a few steps (a few minutes or so) behind what you are working on, in case some disaster happens, you can recover "most" of what you've prepared.
2) It is strongly recommended to NOT save directly to, or work off a USB flash drive...historically, those files have become corrupted during the save process, and become unrecoverable. Certainly, things might have improved over the years, and perhaps they have some better interaction now...BUT (opinion) it's still safer to work and save to your main system disk, then copy-paste the .tax2023 datafile to the flash drive for backup.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
