Problem cropping photos in iOS 10
Since I installed iOS on my Mini, when I crop a photo in Photos it seems to work, but when I try to use the cropped photo on Twitter (and elsewhere), it uses uncropped version. I have use a second app (like Snapseed) to crop it again. I crop ALL my photos and have accumulated 40,000 of them in two years, so this is a huge amount of additional work. I hope you fix it or I'll have to abandon Photos for another editor altogether.
iPad (3rd gen) Wi-Fi, iOS 6