No picture on screen anymore??? Help!!

[davenfs]

Ever since all this 3dr solo and Apple app updates, I no longer get anything on my iPhone 7 screen when operating my 3dr. All functions work and it records and takes vids even though when it saves to my camera roll everything is blank but in the GoPro 4 silver sd card everything is fine. Is this a gimbal communication issue with Apple? Is there a fix? Is there a prob with my solo gimbal? I've tried different go pro settings in solo app and makes no difference. Any help is much appreciated thank you