solved
it was a LXDE problem , as soon as i recognized this i could get a work
around .
Problem : with the new user(blabla) not plugged in on a physical monitor , and
first running xrdp
there was a .cache folder . but it was completly empty .
Solution : i just copied the "pi" user /home/p
i hope i can help to make it reproduceable , i have nearly the same problem
with my raspberry.
With the User "PI" it works fine. with the user "blabla" (mentioned below) it
works partly.
#error described:
-user blabla connects to pi ,
-blabla get the sesman log window and then the prepared