When I receive a call from someone in my contact list, their photo no longer shows up on incoming call, but once I have answered the call, the photo then appears. Has anyone else experienced this?
This is normal with ios7. Dont update unless you really need too! They have not fix many issues like facetime, imessage, and this but are also forcing us to update os because you cant download any new apps unless you upgrade ios7.
See below and further reading at site below
Problem: Full screen caller photo gone
A lot of people are complaining that the full screen caller photo has been replaced in iOS 7.1 with a grey screen that has a photo of the contact in a small circle. This means it’s harder to see who is calling at a glance.
Potential fix:
Sadly there’s no way to get the full screen caller photos back right now, but a lot of people are complaining online and you can join them by submitting feedback to Apple. If enough people make a noise about this then Apple might just bring it back as an option in the next update. http://www.apple.com/feedback/iphone.html
Yeah, that's strange. If it shows up during the call it certainly shoudl show up when the call is ringing. Have you tried to perhaps edit/change one of the contact photos to see if that might get it working? Have you tried restarting the phone as well as that sometimes gets rid of some weird things?