User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:67.0) Gecko/20100101
Firefox/67.0
Build Identifier: 

I can start remmina and I can manage my connections to other computers.
But If I try to establish a RDP connection to a Windows computer, remmina
crashes.

Reproducible: Always

Steps to Reproduce:
1. >remmina
2. add a new access to a remote computer using the "new profile" icon in the
upper left cordner of the program window.
3. specify Protocoll=RDP
4. type the host name or IP address of an existing Windows computer
5. Click at "Connect"
Actual Results:  
memory access violation (core dumped).

Expected Results:  
A window opens, which shows the login screen of the remote computer.

KDE Plasma5

>uname -a
Linux nb 5.1.16-1-default #1 SMP Wed Jul 3 12:37:47 UTC 2019 (2af8a22) x86_64
x86_64 x86_64 GNU/Linux

>xfreerdp --version
This is FreeRDP version 2.0.0-dev2 (n/a)


The crash also occurs at older Tumbleweed's.

The crash also occurs with already saved connections.

The crash does not occur if the specified remote computer does not exist or if
is not accessible.