I've been getting a crash fairly regularly while rendering a scene (which is 500+ MB) with the same error pointing to liblegion_wxwidgets.dylib. Happy to pop the scene file on Dropbox or otherwise if it helps.
Unfortunately it happens during an unattended render.
It has happened for a variety of different scenes. I've attached the most recent one. These mostly contain a CAD model that was not constructed in C4D, and some GSG lights. That's about it.
I've attached the bug report.
I'm on a Macbook Pro 15", 2016, 2.9 GHz Intel Core i7, 16GB 2133 MHz LPDDR3, Radeon Pro 460 4GB.
Happy to help identify this in whatever way necessary.
Julian