Edit: it seems to be following me into every map see new pic

Thanks for the screenshots - they made this easy to track down. Items you were picking up right as you went through a portal got stuck half-way through their pickup animation and stayed floating in every map after. That's fixed and live now: loot something right before stepping through a portal (Henesys Hunting Ground is fine) and nothing should be left hanging in the sky. A relog clears any that were already stuck.