'Set Timer by Function Name' not able to call functions that return an Output Parameter

When using a 'Set Timer by Function Name' node with a Function that has an Output parameter it will fail at executing the Function. If the Function is called with an Event BeginPlay node it will function as expected.

This was reported in 4.19.2 (CL-4033788). It was tested and reproduced in 4.18.3 (CL-3832480), 4.20 Preview 5 (CL-

1. Open the UE4 Editor
2. Open the Level Blueprint of any map
3. Connect a 'Set Timer by Function Name' node to Begin Play
4. Create a Function named "fname"
5. In "fname" add a "Print String" node and an Output node with a Boolean Parameter
6. On the 'Set Timer by Function Name' node: Set Function Name="fname", Time=0.1, and Looping=true
7. Press Play

Results: The timer will not call the Function

Expected: The timer calls the Function and the Print String value is shown