Could be related to the 'Function Discovery Resource Publication' service, which I read is now responsible formaking your device visible on the network. Apparently it defaults to Manual setting and sometimes doesn't start, but setting to Auto fixes it.
Thanks for submitting the bug. I don't have the feedback hub app. If you could post the link so we can vote would be helpful .
this is the most important changes...now for find all the change for a big update gpu you need look deeper than usually and if you find forum or site with all changes changelog list.
i think the hololens will become rs4 1804 and not the OS...i just see buildfeed change too hololens 17134.1004