Netprofile and steam crashing?

i’m also experiencing this assert in 4.8.1
two machines, each with different steam login.

after both connecting to same game, typing netprofile in command line results in assert

Assertion failed: “Invalid interface for Steam P2P addresses” && 0 [File:…engine\source\runtime\online\onlinesubsystemsteam\private\IPAddressSteam.h] [Line: 72]

coming from FNetworkProfiler::TrackSocketSendTo > Destination.GetIp

is netprofile and steam supported in 4.8.1, or only starting at 4.9?

thanks