I have recently bought an iPhone 8 Plus and made the switch to recording most images with Lr Mobile. I record in .dng for best editable quality. I've noticed that all is good with no flash but if the flash is on the pic seems to take and the flash goes off, but nothing is recorded. It doesn't turn up anywhere else either (e.g. main camera roll).
I'm thinking this is a bug as I can't find any setting to affect this?
It's a pity because otherwise Lr is a great mobile app.
Unfortunately this is a side-effect of an IOS11-bug. We will provide a workaround with out next update. - Guido/Lr Mobile QE