Hi Chadd,
Yes.
SC prior to SC 10.2.500 fails to import .NET assemblies from Epicor ERP 10.2.500 or newer with:
<Error>
<Descr>Ambiguous match found.</Descr>
<Method>System.RuntimeType.GetMethodImpl(String name, BindingFlags bindingAttr, Binder binder, CallingConventions callConv, Type[] types, ParameterModifier[] modifiers)</Method>
<Exception>System.Reflection.AmbiguousMatchException</Exception>
</Error>
I have to mention that SC is backward- but is not forward-compatible with Epicor ERP.
That is, excluding Epicor ERP updates, SC version should not be lower than that of Epicor ERP, or in other words, you need SC 10.2.600 or higher for Epicor ERP 10.2.600.x.