can't import config with nm-connection-editor

[Gerd Augsburg]

I tryed to import an openVPN connection config file with the network manager.
File is valid, works with sudo openVPN --config myfile
Needed packages are installed.

I can open the networkmanager, chose to create a new vpn connection and select the file to import.
But then allways everything closes no grafical errors or any other response.

syslog:
kernel: [ 3205.754284] nm-connection-e[5301]: segfault at 0 ip (null) sp 00007fff1c853bb8 error 14 in nm-connection-editor[400000+50000]
kernel: [ 3287.829010] nm-connection-e[5468]: segfault at 5 ip 0000000000000005 sp 00007fff9ca53b98 error 14 in nm-connection-editor[400000+50000]
kernel: [ 3350.195318] nm-connection-e[5507]: segfault at 14569a0 ip 00000000014569a0 sp 00007fff3852d9a8 error 15

These errors are from 3 diffrent tries.

Linux Mint Debian Edition UP8
Cinnamon x64