deleted key not found

[scooter6 at gmail.com]

Running SCO Unix with filePro 5.0.09R4

During night time processes, I have been getting a lot of deleted key not
found errors..
I haven't seen these in a long time...

Deleted key not found
Index= letters/index.D
Key="         "
recno=2501
tptr= 8, 12, 1, 207, 0

I don't see any issue with recno 2501 in the letters file -- it is doing a
lookup based on acct #
to another file - and that acct number is there.....

I thought these issues were resolved in a previous bug/fix from an earlier
version?
What causes this?
thanks

Scott Ullmann
Newtown, PA
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