[not a bug]Imported deck shown in Builder, but not in Duel

Maybe the bug sits in front of the computer, but I have no idea where I go wrong.
I imported a deck from the web via PlayDeck Analyzer and saved the imported decks to the PlayDeck folder. When I look for the deck within the Deck Builder I can see and open it. When I look for the deck in Duel I don't see it. I also played around with a new name in the Deck Builder and saving under a different name, but to no avail.
Interestingly it worked before when I imported decks, but saved them in some PlayDeck Analyzer folder and copied them afterwards.
Any idea?
I imported a deck from the web via PlayDeck Analyzer and saved the imported decks to the PlayDeck folder. When I look for the deck within the Deck Builder I can see and open it. When I look for the deck in Duel I don't see it. I also played around with a new name in the Deck Builder and saving under a different name, but to no avail.
Interestingly it worked before when I imported decks, but saved them in some PlayDeck Analyzer folder and copied them afterwards.
Any idea?