I just had a bug when planning the following flight:
EDDM TURB6E TURBU Y107 ALESE L12 VIC LAREN1D.VIC1X LIPZ
Whenever I enter the arrival the plan opens a console window with several red lines, and I have to reboot the plane.
To be more precise: I enter the route completely, and select the departure with no problems. When entering the arrival, I select 04R ILSZ, LAREN1D. If I select the VIC1X transition the console window opens and shows me problems.
I have no idea what log files you need. I attach the IXEG_FMS_debug for you and the console window.