libssl1.1 version 1.1.1~~pre9-1 is breaking something xfreerdp. I had to downgrade to libssl version 1.1.0f-3+deb9u2, and xfreerdp worked again just fine. Kind of looks like there is a new version coming out, but I wasn't sure if this problem was addressed. Unfortunately I don't have much time debug it.
-- Dale Harris rod...@maybe.org rod...@gmail.com /.-)