Same issue (iOS, iPhone X). I've seen several other posts about this as well.
Does the flash not function in raw/DNG mode? If so, just tell us Adobe. Is this a bug or expected behavior?
On my iPhone 7 it worked just fine. Also, when I want to take a selfie in DNG-modus (not sure if that's what you want by the way..) I was able to enable the 'flash' (so the screen becomes bright). It seems that it's a bug in the connection between the app and the flashlight.
I have the same problem here. I believe it an issue with the iOS. I tried using the Camera+ app as well and when I changed the image quality to RAW I got this message:
"RAW and Flash Warning :: RAW shooting is currently not compatible with flash on this device. Until a fix is available in a future iOS version, flash will be automatically turned off for you when you are capturing RAW photos. Please, disable RAW manually if you need flash"
Very frustrating, and stupid.
I have the same problem with my iPhone 8 plus. Flash is disabled, can be turned on if jpeg is chosen instead of dng
On my iPad Pro it works just fine !!!!
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Hi everyone, and sorry for the inconvenience. This issue should be fixed in the latest release of Lightroom CC, version 3.2.1. Please try it again and let us know if you are still experiencing the issue.
Note that iOS 11.3 is required to see the fix Jeffrey mentioned.