[Original Link|https://support.ludiq.io/communities/5/topics/3095-attribute-error-with-null-literal] 
Since the update linked above it seems I have a problem with a new graph being grayed out that wasn't before, I'll attach the error and the asset again:
{code:java}
bolttest.asset

MissingMemberException: Failed to find reflected member 'enter' on 'ScalarMultiply':
(?).enter
Ludiq.MemberMetadata.Reflect (Boolean throwOnFail) (at C:/Users/lazlo/Projects/Bolt1/Package/Ludiq.Core/Editor/Meta/MemberMetadata.cs:93)
Ludiq.MemberMetadata..ctor (System.String name, BindingFlags bindingFlags, Ludiq.Metadata parent) (at C:/Users/lazlo/Projects/Bolt1/Package/Ludiq.Core/Editor/Meta/MemberMetadata.cs:19)
Ludiq.Metadata+DigMember.<.ctor>b__0_0 (Ludiq.Metadata parent) (at C:/Users/lazlo/Projects/Bolt1/Package/Ludiq.Core/Editor/Meta/Metadata.cs:1321)
Ludiq.Metadata.Dig[String,MemberMetadata] (System.String subpath, System.Func`2 constructor, Boolean createInPrefab, Ludiq.Metadata prefabInstance) (at C:/Users/lazlo/Projects/Bolt1/Package/Ludiq.Core/Editor/Meta/Metadata.cs:592)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:232)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MethodBase.cs:115)
UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:291)
UnityEditor.HostView.Invoke (System.String methodName) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:284)
UnityEditor.HostView.InvokeOnGUI (Rect onGUIPosition) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:251)
{code}
[|https://jira.unity3d.com/secure/AddComment!default.jspa?id=4037790]