Thanks for contacting adobe forums,
Please tell me what is the sequence settings are you using ?
lets try to create a new sequence from the clip by right click on the clip in the project manager window and choose the option new sequence from the clip.
I can create a new sequence from the clip and that works just fine but when I try to add a new clip to that sequence I still get the audio only problem. I even created sequences for each clip then tried to put those together in a difference sequence and still have the same issue.
Be sure you have Source Patching for video set up properly. It's an annoying new feature of CC that patching affects what get's dropped, instead of just where it get's dropped.