Naencounter ko na 'to once sa Nougat ako. Heto po from Google yung sinunod ko.
1. Settings (widget symbol in upper right)
2. Apps (Default apps, App permissions)
3. Tap on the three-dot symbol on upper right of APPS menu
4. Select Show system apps
5. Scroll down. Select Media Storage
6. Long press on Storage
7. Press both Clear Data and Clear Cache
8. Reboot your Phone
9. Go to your camera, and took a 1 picture.
10. Wait for up to 5 to 10 mins to load all you media (photos and videos) from your Internal / External Storage