Help solve a family debate?

If you take a territory but fail to take a card before you officially end your round do you forfeit the card?

I forgot to take my card until right before the next player started their round and it has started a risk rules debate… it’s getting intense in here!

If you take a territory but fail to take a card before you officially end your round do you forfeit the card?

I forgot to take my card until right before the next player started their round and it has started a risk rules debate… it’s getting intense in here!