To begin, I'm using latest Forest Pack Pro with 3ds max 2013 x64.
So here is my issue.
I made 4 differents Forest which are small areas with differents type of grass. The render mode is mesh.
I added the 4 forest into one big.
I saw this technique in your grass tutorial. So instead of using a some meshes that I will scatter with Forest Pack, I use one Forest to scatter other forest.
Everything works fine as long as I don't move the timeline.
If I move it 3ds max will crash after some seconds.
If anyone got an idea how to fix this or if you need anything just tell me
I saw you might need the dump file from the crash so here it is (right click, register as...):cynaptek.com/files/Forest_Pack_3dsmax_minidump.dmp