Order of interfaces

[Tomas]

Does it matter in which order a class inherits from interfaces?

    class A : Interface1, Interface2{ ... }

    vs

    class A : Interface2, Interface1{ ... }

Conceptually it should not matter, but I'm getting really weird 
segfault errors with one version and no errors with the other 
version.

I still do not know what I'm doing wrong, but does anyone have an 
idea why the order might matter?