Tables :: Compact On Close Drops Several Indexes

I cannot cause a database to refrain from dropping several table indices during a Compact on Close operation. I am running Access 2010 under Windows xp.I have created a database that merges data in a linked text file with data in a linked database, appending the results in a local table. The database has the Compact on Close option set. The table has 27 indices (because most of the fields either are coded or are potential select or sort fields) and nearly 1 million records.

I run a delete query to clear the contents of the table, I close (and compact) the database, I reopen the database, and I run the append query. The indices in the target table are intact. I close (and compact) the database again; when I reopen the database, indices are missing -- sometimes about 10, other times nearly two dozen!

This table is linked to a larger system, which contains code to run the sequence outlined above. Whether run manually or in code, as stand-alone or as a component, indices are dropped. When I close the database with the table containing no records, the indices are not affected. After appending records, but before closing, the database contains 1.66GB. The drive on which the database resides has 42GB free.As suggested with regard to a number of other unexplainable issues, I have created a new database and imported all objects from the original database. The results persist. The larger system performs accurately without the indices, but the performance against a table this massive is horrible.