Setting variable type to an object reference prevents the variable from showing on the Get Class Defaults node

Any variable with the type of any object reference (Actor, curve float, etc.) causes the variable not to appear on the Get Class Defaults node.

Regression:
No - issue occurs in binary 4.12.5 as well

1. Open UE4 Editor (Any project)
2. Create blueprint based on Actor
3. Add Get Class Defautls node to the graph
4. Add two new variables in MyBlueprint Tab (Var1 and Var2)
5. Set Variable Type drop-down for Var1 to Object Types->Actor->Reference
6. Set Variable Type drop-down for Var2 to Object Types->Actor->Class

Result:
Var2 shows as a purple output pin but Var1 does not show on Get Class Defaults node

Expected:
Var1 shows as a blue object reference pin