I am attempting to update the customers database by running my SDT update.exe that I have used for several years. I am getting the message that the FPT file for one of the tables is missing or invalid.

I backed up the tables and DBC files before running the update.exe and the table in question is OK. I can open it and browse it. The issue seems to be that the update.exe 'thinks' there is a missing or invalid FPT when there isn't. I have tried copying the good backed-up files into the original folder they were from where the update is being executed and that does not work.

Any ideas or suggestions?
Thanks very much.