>I've debugged an odd problem - right after doing some programmatic Alter Tables on a certain table, the indexes are all fouled up, even when I close all indexes beforehand, and when I'm not altering a field involved in an index.
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>I get bizarre record order when I SET ORDER right after this...I have to either close the table and reopen it, or do a DELETE TAG and fresh INDEX ON to get indexes back working correctly...weird?

We saw this intermittently as well. There seems to be a memory bobble between the updated DBC and the updated DBF/CDX. Closing the table seems to work.....