1. At an error -1406 (Index file is damaged), the RPS Damage Report showed Index corrupted as TRUE.
The RPS REBUILD gave error -1520 (No duplicate key allowed). The key was set up as No duplicates allowed. Therefore the file was inaccessible and couldn't be repaired.
2. A file with 13 records was set up the same way as the damaged file (making sure there were no duplicate keys). The RPS REBUILD gave the same error.
To correct the problem, you would have to Consult the FAS in the program that created the file.