[fixed]Haunted Fengraf ability doesn't return creature

[Aswan jaguar]

Describe the Bug:
Haunted Fengraf when it's non mana ability resolves doesn't return a creature at random from your graveyard to your hand.

Which card did behave improperly?
Haunted Fengraf

Which update are you using? (date, name)Which type? (duel, gauntlet, sealed deck)
Manalink dev 778ccb5 version - duel

What exactly should be the correct behavior/interaction?
Haunted Fengraf when it's non mana ability resolves it returns a creature at random from your graveyard to your hand.

Are any other cards possibly affected by this bug?
-

[Aswan jaguar]

Fixed in commit d5865f36.