Not sure it's happened to everyone, but . . .
Settings used to be saved under your @username in SavedVariables. They appear to be saved under "" now.
So . . . open all your savedvariable files, find "@Name" near the beginning and replace it with "" and you should be all set.
Before:
https://www.dropbox.com/s/thkq3w83tmsszfx/LUABefore.png
After:
https://www.dropbox.com/s/2lukxmdrhxv0tm1/LUAAfter.png