Barb vault scaling, cow bardiche not working

Running a barb when I entered Greed’s vault I noticed the dividing walls obscured (too big to see drops) items. Difficult to see.

Does the cow level bardiche have a time limit on their use? It wouldn’t let me do a third run until I restarted a game.

There is no time limit but there is a limit of one cow level portal per game instance, i.e. once you’ve opened the portal you will need to leave game and make a new game to be able to open another one, as there’s no way to close an existing cow portal.

That is not a bug.