This has happened to me twice in a row:

I am changing the structure on a file using Structure_Start and Structure_End

It works perfect every time on my development computer, but when I run the process on the production server, the SQL Constraints get deleted from the file being modified and then I have to recreate them manually.

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I use the same process at 100s of clients without issue (thankfully), but on this one production server (which happens to be mine) this has happened twice

SQL Express 2017 (on Production Computer)
Runtime Version: 19.0.33
Package Version: 19.0.1
FMAC Version: 19.0.97
Database driver(s): DATAFLEX, ODBC_DRV (, MSSQLDRV (
MSSQLDRV Client Version: ODBC Driver 13 for SQL Server (SQL Server 2016 client)

Any ideas why this would be happening?