Works for me on a fully updated system this morning (not sure if that makes it rc3) and can log in with Plasma no problem using the standard windows client. My system currently reports:
OK, looks like there is an issue with /etc/xrdp/startwm.sh
I run a very customized version of this on my systems, hence I saw no problem.
In that file if I substitute
# SESSION="gnome"
xterm
case $SESSION in
for
SESSION="gnome"
case $SESSION in
Then using Xrdp with either Xvnc or Xorg sessions comes up with a functional Xterminal window. Again this is using the Windows Xrdp client from Windows 10.
So it defaults to “gnome”, which I didn’t install. If I change it to “plasma” it all works fine for me.