It’s certainly a possibility. Basically, the query components are all read-only. They only return whatever objects it finds on the document. For linetypes, hatches, it was decided a long time ago to not auto-populate those tables in the document as they would add unnecessary bloat to the file (especially if the user has no plans to work with linetypes, hatches). So, in order to get the default linetypes and hatches to load you have to either open the hatches or linetypes panel in the UI, or open them through Tools->Options->Linetypes panel for example.