Pictures from a convo on whatsapp turns black when I open them!

Pictures from a convo on whatsapp turns black when I open them!

Everything was fine on whatsapp until yesterday, when I opened an old picture from the whatsapp convo with a friend, it appeared completely black! The picture still shows on the small icon in the "view all media" part of the whatsapp convo, however it's just black when I open to view the picture. Also, I've sent this friend more pictures last night, and when I open to view the picture in "view all media", it's fine! Holy **** man, I have like more than 400 pictures with this friend, and I don't want to lose these pictures. So what should I do to view those old pics again? Ahh please help me guys!

The picture looks like this when it's opened by the way: https://mail-attachment.googleuserco...jn3OgT_2_ZOJBg

Pictures from old conversations with other friends can be viewed and it's all perfectly normal tho