Hub Deckviewer bugged?

Just tried to look at some of the decks posted in the deck secton of the Hub but it seems like that there is a bug.

The cards are listed in 2 columns. The first column contains 5 cards with 3 copies each while the second column shows exactly the same cards. In other words the decks contain only 5 different cards but 6 copies of each!

And suddenly it works? Either my PC was buggy or is was just to stupid to use it correctly.