Good morning! Thank you for posting in the Final Fantasy XIV Technical Support Forums.

From the description provided, it sounds like your local files may have been corrupted. Please note, uninstalling/reinstalling the game would not affect these local files. Unfortunately the fix may cause you to have to redo your in-game settings once more:

- Please go to 'My Documents' > 'My Games' > 'Final Fantasy XIV - A Realm Reborn' and delete that folder. If there are any corrupted files that are associated with the characters, this will get rid of them. Right click on the folder itself after deleting the contents, if it is set as read only, please uncheck that and re-launch Final Fantasy XIV.
- Please be sure to install the game to the C: drive as this works best with Final Fantasy XIV. Lastly, please be sure that no background processes are interfering with FFXIV (i.e. Anti-virus software, OneDrive, Discord etc.)

Thank you once again for visiting the Final Fantasy XIV Technical Support Forums!