It seems a software issue, but we must identify what is the problem exactly. What renderer do you use: Mental Ray, VRay or other ?
Please, do this:
- Send us the minidump file that Max generates after crashing. You can get it clicking "View report details->View report contents", checking the path of the "3dsmax_minidump.dmp" file and making a copy of it, before closing the 3ds Max Error Report window.
Try these tests and tell me the result:
- Instead selecting the Library item from the Creation window, create a default Forest object, go to the Modify panel and open the library browser from it.
- Download the scene of the Realistic Grass
tutorial, and try to render it.
Replying to your question: yes, Forest can scatter both meshes and proxies. But usually it is not necessary to use proxies, because internally all objects are converted to native instances of the render engine.