When upgrading from 8.7 or earlier, to 8.7.1 or later, the upgrade of the mdb files may fail with the following error:
"SQLite3_statement_backend:loadOne UNIQUE constraint failed: Sessiondetals.ID"
Duplicates in the SessionDetails table of the ERDiskAD.mdb file
Use Microsoft Access to open the file, check for duplicates and if found, delete the duplicates:
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