Hello,
I've been noticing a crash in TG4 when using the RTP and accessing an objects parts shader(individual or population) while shaders are turned on. I've tried .tgo and .obj files. Seems to happen when accessing the sub menu of the parts shader(separate window or not) while RTP and shaders turned on, or I can have the sub menu of the parts shader open, click on RTP and then turn on shaders and TG4 crashes.
Hope this hasn't been brought up already.
P.S. Love Terragen 4