'Fly' doesn't give Venture into Dungeon on hit [Investigating]

Playing Bolas Ravager in TG standard.. I’ve got 3 creatures on battlefield. Each of them with the card ’ fly ’ casted on them gained flying and enchanted for damage opponent → venture into dungeon. During combat each of them hits opponent and no effect happened.
In the same game one of my creatures venures into dungeon on enter without problem.

Hello @Gorthawer,

Thank you for all the information provided, this issue will be investigated!
If you have any additional information that you consider relevant, please don’t hesitate to send me.

Rebeca.

The card got a text change so we can close this topic. Now it only gives 5 mana to cards with venture. Thanx.