2.0.0.0a6 "doesn't own [variable/event/graph]" errors

"ClassA" sets var "Health" on "ClassB" then calls a function on ClassB to log it's own Health var.

ERROR:

InvalidOperationException: Class ClassA (ClassDefinition) doesn't own variable Health.

InvalidOperationException: Class ClassA (ClassDefinition) doesn't own variable Health.

Ludiq.Bolt.ClassDefinition.EnsureOwnsVariable (Ludiq.Bolt.ClassVariable variable) (at Assets/Ludiq/Bolt.Core/Runtime/Architecture/ClassDefinition.cs:178)

Ludiq.Bolt.ClassHost.EnsureValidVariable (Ludiq.Bolt.ClassVariable variable) (at Assets/Ludiq/Bolt.Core/Runtime/Architecture/ClassHost.cs:480)

Ludiq.Bolt.ClassHost.SetTransientVariable (Ludiq.Bolt.ClassVariable variable, System.Object value) (at Assets/Ludiq/Bolt.Core/Runtime/Architecture/ClassHost.cs:577)

Ludiq.Bolt.ClassHost.SetVariable (Ludiq.Bolt.ClassVariable variable, System.Object value) (at Assets/Ludiq/Bolt.Core/Runtime/Architecture/ClassHost.cs:639)

Ludiq.Bolt.SetClassVariable.Set (Ludiq.Bolt.Flow flow) (at Assets/Ludiq/Bolt.Flow/Runtime/Units/Architecture/SetClassVariable.cs:75)

Ludiq.Bolt.Flow.InvokeDelegate (Ludiq.Bolt.ControlInput input) (at Assets/Ludiq/Bolt.Flow/Runtime/Flow.cs:497)

Rethrow as GraphPingException:

Ludiq.Bolt.Flow.InvokeDelegate (Ludiq.Bolt.ControlInput input) (at Assets/Ludiq/Bolt.Flow/Runtime/Flow.cs:501)

Ludiq.Bolt.Flow.Invoke (Ludiq.Bolt.ControlOutput output) (at Assets/Ludiq/Bolt.Flow/Runtime/Flow.cs:395)

Ludiq.Bolt.EventHandlerUnit`1[TArgs].Run (Ludiq.Bolt.Flow flow) (at Assets/Ludiq/Bolt.Flow/Runtime/Units/Events/EventHandlerUnit.cs:127)

Ludiq.Bolt.EventHandlerUnit`1[TArgs].Invoke (Ludiq.Bolt.GraphReference reference, TArgs args) (at Assets/Ludiq/Bolt.Flow/Runtime/Units/Events/EventHandlerUnit.cs:106)

Ludiq.Bolt.EventHandlerUnit`1+<>c__DisplayClass17_0[TArgs].b__0 (TArgs args) (at Assets/Ludiq/Bolt.Flow/Runtime/Units/Events/EventHandlerUnit.cs:73)

Ludiq.Bolt.EventBus.Invoke[TArgs] (Ludiq.Bolt.EventHook hook, TArgs args) (at Assets/Ludiq/Bolt.Core/Runtime/Events/EventBus.cs:153)

UnityEngine.Debug:LogException(Exception, Object)

Ludiq.Bolt.EventBus:Invoke(EventHook, EmptyEventArgs) (at Assets/Ludiq/Bolt.Core/Runtime/Events/EventBus.cs:157)

Ludiq.Bolt.ClassHost:InvokeEvent(EventHookID) (at Assets/Ludiq/Bolt.Core/Runtime/Architecture/ClassHost.cs:813)

Ludiq.Bolt.UnityClassHost:Update() (at Assets/Ludiq/Bolt.Core/Runtime/Architecture/UnityClassHost.cs:33)

Ludiq.Bolt.ClassComponent:Update() (at Assets/Ludiq/Bolt.Core/Runtime/Architecture/ClassComponent.cs:92)