Problems about the Broadcast list

Hello, I am encountering a problem about the Broadcast list that I created. In fact if I want to forward a message I've eceived to that list, then I cannot see it in the whole list of my contacts as it disappears. This problem arose only few days ago, as, previously I never had such a problem. I tried to solve it in uninstalling and installing again whatsapp but this problem reamains. Could you give me some advice about this problem? Best regards