I haven't been a Live Photo user as I didn't see the need. Now with the ability to "choose" the frame of the photo I thought I'd start playing with it. DP4 is the first version (in iOS 11) that I am using Live Photos with so these might be long term issues. My problems are: - Can't slide my finger along the "timeline to choose the frame I'd like. Instead I have to tap at the timeline to pick the one I want. I was under the impression you could slide it. -Can't trim the live photo using the beginning and end edit bars. Not like I'd personally use this feature but I noticed it's not working for me. I have tried closing all open apps and a hard reboot with no success. So is this a bug affecting a limited number of users or most users?