Thank you for your post.
I am unable to replicate the issue with an iPhone 5s under iOS 9.2.1 and iOS 9.3.
If you create a new database file with a Container field and take a picture, does the picture then display correctly?
If you insert a photo from the Photos app, does the photo display correctly?
to put my experience to general knowledge:
I'm unable to replicate either with iPhone 5S AND iPad Mini (1. Generation).
Both running FMGo14* with iOS 9.3*.
Similar issues have been reported in the past.
I'ld recommend to run most current version of FMGo14 as well as update to iOS 9.3.
There are known issues caused by Mac OR iOS, NOT FM