Okay, I uploaded version 1.8.1. Please let me know if you still have problems.
Always happy to hear it. What you say is quite possible - I changed some of the data in there. The save data has a version number saved with it. If the version is greater, it's supposed to create a new save file, and copy over any new fields that exist now into the old save file. But I probably messed something up somewhere, or didn't update the save file version or something.