1st looks like fixed, or may be relog helps, I don't know)

1. Sharing working only as public, when you share only for party/guild/etc, players from this groups still can't use table.
2. When you use shared table you can put items there, but when click 'Enchant' - receive an error that enchancement fail, but when owner of table click it (with your items on table) - all is ok and enchancement completed successfully.