Crash with 30bit depth

Hi folks,
I just bought a Geforce1050Ti and fitted to my kodi box.
All works well with the normal 24bit depth in X, but if I switch to 30bits then X seems fine but when KODI starts it just outputs the following two lines and crashes:

10:31:43.833 T:140348934506816 NOTICE: Checking resolution 16
10:31:43.931 T:140348934506816 ERROR: Failed to find matching visual

Where should I start looking? Should I try other skins, other window managers or is this just not supported yet?

Running: 17.1-RC1 Git:20170223-nogitfound
Thanks