Hi, I have researched this issue with no avail. I am hoping for some info by posting my problem. I have had no issues with both devices since purchase (at least one year ago) however all of a sudden yesterday the android stock gallery on BOTH devices ceased to function as expected. Now, when open, the gallery shows only grey thumbnails (in case of video with a white triangle). If a gallery folder is opened, again grey thumbnails only. If the image/video is individually opened, the image will show, video will play. This is the case for images stored on the sdcard and the device memory. I had been using a 128gig sandisk ultra in the phone and samsung evo 64gig in the tablet. No issues ever until this weekend. As far as I am aware there has been no device/android update and I have not installed any new apps. To attempt to resolve this issue I have; 1. Factory reset or both devices. 2. Cache cleared for both devices. 3. Formatted the sdcard with the phone and reinserted. 4. Inserted a 32gig samsung evo card. From research I have done the following. 5. Used a non stock gallery app. 6. Used a media scan app. 7. Attempted to view images/videos taken with the phone in the gallery. Nothing I have tried so far. Maybe there is something I have missed.