Hi,
if I am using forest object as geometry item in another forest object and I am changing color in forest color map during corona interacive rendering, 3dsmax almost immediately crash.
When I convert bunch of grass to mesh, everything works OK during corona IR.
I don't know if this crash is related to corona or forestpack.
max 2014 SP6, FP 5.3.2, Corona 1.6
video
link