gourgeist721

16 minutes ago, theSLAYER said:

The save file still works in the game right?

Yes it does, without issue.  The only other thing that might have happened was I used it to do a local union circle in Area Zero to shiny hunt Iron Valiant on my main Scarlet file, which I've never modified at all, though that shouldn't do anything to corrupt a save file.

Edit:  MIO1339's suggestion worked, it opens in the dev build.  Thank you for the assistance.

"Attempted to load an unsupported file type/size.  This could be caused by loading a different generation Pokemon file on an unsupported generation or your file is corrupt."

The file in question opens and runs as normal, all that's changed from the previous backup is I played through the game and beat the story.  Any ideas what happened here before I reset the file to an old save that works (most recent is from yesterday)?  Thanks.