Hey,
First of I'm humbled by you going the extra mile just because I had a hickup. Thank you for the effort!
Secondly, sadly the save file is now fully corrupted, even the menu says that so I can't provide the log for you to disect this issue. I guess it was the version change somehow caused the file corruption, but I'm not an expert.
Again I'm sorry that I can't help even tho you did your part. Hopefully this new feature will help someone else out so it wasn't all in vein.