Hey there! Thanks, I'm glad you liked the writing!
Sorry, I guess we forgot to put it in the patchnote, but we've already made it so that if the game loads the saves made in previous versions, it automatically resets your progress on the last scene (the one that was the last one in the previous updates) so that you could view the new, updated and expanded version that actually introduced the new characters without losing any of your other progress. If the issue you're experiencing is loading the save and it still thinks you haven't beaten Fin, that's what it is.
If that's not what you were referring to and there's some actual jam up with your save, I would recommend opening the 0.2.3 version and using the import feature there. When you go back to 0.2.4, it should pick it up automatically.
If you still want to nuke your progress (and, I mean, people can have their reasons, right?), it's in C:\Users\%USERNAME%\AppData\LocalLow\Tiger Roll Games\The After Hours Office Predators