Unity3D crashes when i try to import sbsar files

Unity Engine
1

I have tried more than once to import the unitypackage from the FT_CaveWorm.

Everytime Unity3D crashes.

When i import all files from the unitypackage excluding the caveworm.sbsar file then all works fine.

But everytime when i try to import the caveworm.sbsar file then Unity3D crashes.

2

I use Unity3D 4.5.0f6

3

Worked fine for me with your Unity version.