I'm what I'd call a 'reasonably savvy' business user, administering a pretty standard SharePoint 2010 project site (actually a sub-site). We are using the built-in Issues and Action Items lists. Both of those lists have "Owned by" as a standard field, which ties into our global address book (Lotus Notes). The fields show up normally when adding an Issue or Action Item, and I have no issues adding an owner, but I'm having the following issues:
When I switch to datasheet view, the column for "Owned By" does not show up.
When I export to Excel, the column for "Owned By" does not come through with the other columns.
Sorting and filtering by this field in normal view does not work.
I have edited the data type to be single choice, and "individual only", rather than multi-select and allowing both individuals and groups. That has not worked.