Thank you for your post.
It's difficult to determine what is the problem with those three files without seeing them. Therefore, I would like to see your FileMaker Pro 11 files to determine if the corruption occurred before or after migration to FileMaker Pro 12. I know the files are large, so check your Inbox at the top of this page for instructions where to send the files.
Tests you can do:
Do a recover on the Filemaker 11 files with FIlemaker 11. Perhaps there was an issue in the file before they were converted.
Convert one of these files again and do a recover on the file with Filemaker 12.
Things to keep in mind about Recover:
While Recover almost always detects and fully corrects any problems with your file...
- The recovered copy may behave differently even if recover reports "no problems found".
- Recover does not detect all problems
- Recover doesn't always fix all problems correctly
- Best Practice is to never put a recovered copy back into regular use or development. Instead, replace the damaged file with an undamaged back up copy if this is at all possible. You may have to save a clone of the back up copy and import all data from your recovered copy to get a working copy with the most up to date information possible.