Grasshopper crashes when I try to use some options

Hi!

I am using the version 1.0.3 of Karamba with Rhinoceros 5.0 64 bit and Grasshopper 0.9.0056. All work fine but I have some problems when I try to use some options, in particular those options that use a drop-down menu (for instance, for selecting the load cases in the "ModelView" component or for selecting the country in the "Cross Section Range Selector". When I select something, Grasshopper crashes and I should close Grasshopper and Rhino. 

I don't know exactly what happens, it is so strange. I have checked this problem in other computers. For some computers the problem is exactly the same, but for some of them Karamba works perfectly. I don't know, but I think that crashes with the 64bit version always.

If someone knows something about the problem... By the way, good work with the program. I think it is very useful.

Regards.