Why do I have duplicate iPad USB network devices? As you can see in the screenshot below, I have two network devices listed under Internet Sharing. Oddly enough, I do not however have two under the Network preference pane. Anyway, I was wondering a) why this might be, b) whether it is symptomatic of an underlying issue, c) if it can be resolved (easily).
This problem disappeared for me upon upgrading to macOS Mojave.