In 4.5 I was able to attach a static mesh to my player character through persona by adding a socket first to the and then assigning that socket to that mesh component through the mesh details within the character components. However in 4.7 clicking the socket option within the mesh details results in no sockets showing up to choose from. Was the process of doing this changed? Or is it a bug?
You choose the parent socket from the Child Component’s details.
So first make sure that the Child Component (static mesh in your case) is parented to the Skeletal Mesh, then select the child component. In it’s details, select the looking glass next to Parent Socket.
That dropdown can be found in the details panel when you select a component. Parent Socket is present for almost every component and will list bones and sockets for the parent component.