Why does this happen? Lately it's been happening often. A picture that was perfectly fine in my gallery all of a sudden is half gone? ?
sent from my Note 3
And also, low memory can cause this issue. And sometimes it happens if there is substantially large file in your phone. It may be a video file or any other file. I don't know reason behind it, but this problem was solved by removing a huge file from my friends phone.
What kind of a large file? I've not had anything new installed. I've got plenty of memory also.
sent from my Note 3
It might be a file (larger than 1 gb) which your phone cannot open or read.
Your SD card may be going bad. This is something that is unfortunate with memory cards. They can only be read/written so many times before they go kaboom. I would say this is the issue. Chances are that the pics that are bad (like the one you posted) will not be able to be saved. Transfer anything you need from that card to your computer just to be safe.
How often do you reboot your device? Often times people think these devices can just stay on forever. My own wife reboots her GS3 maybe once a month. By practice, I reboot mine every night just before going to bed. This helps to shut everything down. Hope this helps. As far as your camera gallery only showing half the pic, if you look at the same pic on your PC or mac, I'm sure you'll see it in full. This happens to my GN3 from time to time. I have no idea why but it does. I suggest transferring the pic off your device onto your computer. Best of luck!