I have a number of fairly straightforward queries that DO work. Two of these are used to export data to Excel spreadsheets. For a while, they will work fine until without warning, the query code is randomly erased. When I try to execute the command that exports the data to the spreadsheet, I get a "Query must have at least one destination field".
Any ideas? Maybe this is a bug or there is something somewhere that is causing my queries to be erased?