Hello dear friends of RetroArch.
I have a rooted nVidia Shield TV (2017) and the actual RetroArch works well 
NES, SNES and N64 have been running smoothly so far and I can customize my shield controller to any core.
Now I also have the Dolphin Core to play NGC and WII games. After some initial difficulties, I managed to get WII running.
For this I had to copy the sys folder (see https://docs.libretro.com/library/dolphin/). In additional, in the core settings i have to disable “ALLOW CORES TO SWITCH VIDEO DRIVER”. And I also had to disable the rewind or time-lapse function, otherwise RetroArch crashes every time I load WII.
Anyway, it works now and I can start at least WII game yeah
But it does not work with the Shield Controller (didnt test any other) And as soon as I change the controller settings, RetroArch crashes again 
Also when i try to start a NGC game, RetroArch crashed
Is there any guide (kind of “HOW-TO”) on how to get WII and NGC games running on the nVidia Shield and control them with the Shield Controller ?!
Thank you very much !!
PS: yes, I have already read this … Or that
But it seem to be a Shield Controller issue 