The Class::DBI mailing list is not moderated. I'd suggest trying again. If you do, please mention which version of Class::DBI you use.

The only thing that jumps out at me here is that you don't declare primary keys on any of these, so it will take the first column in your All list as the key. But if you only see this error under the debugger, what are you worried about? Sounds like a problem with the debugger mangling context somewhere to me.

UPDATE: Someone else had a similar problem on here, and recompiling DBI/DBD fixed it. He was using a DBI compiled against an older version of perl. Try that, if you can.