A generic type instance is loaded by the assembly class loader of the generic type definition, but it should not be registered there (as this causes name clashes and that class loader isn't reported as it's loader anyway), it should be registered by the generic class loader that it is associated with.

runtime/AssemblyClassLoader.cs

@@ -572,7 +572,16 @@ namespace IKVM.Internal
 			TypeWrapper wrapper = GetLoader(type.Assembly).CreateWrapperForAssemblyType(type);
 			if (wrapper != null)
 			{
-				wrapper = RegisterInitiatingLoader(wrapper);
+				if (type.IsGenericType && !type.IsGenericTypeDefinition)
+				{
+					// in the case of "magic" implementation generic type instances we'll end up here as well,
+					// but then wrapper.GetClassLoader() will return this anyway
+					wrapper = wrapper.GetClassLoader().RegisterInitiatingLoader(wrapper);
+				}
+				else
+				{
+					wrapper = RegisterInitiatingLoader(wrapper);
+				}
 				if (wrapper.TypeAsTBD != type && (!wrapper.IsRemapped || wrapper.TypeAsBaseType != type))
 				{
 					// this really shouldn't happen, it means that we have two different types in our assembly that both