Custom functions can call Set Timer nodes

Custom functions can call Set Timer nodes. There are no other time related functions that can be called through custom functions. Calling a timer through custom functions seems to lead to editor crashes.

1. Open Editor (any project)
2. Create new blueprint (actor)
3. In My Blueprints pane, create a custom function
4. In Custom Function, RMB in graph>type in "Set Timer by"

Results:

Both Set TImer by Function Name and Set Timer by Event nodes appear in context sensitive list, both can be called without error in the custom event.

Expected:

No timer events appear within the context menu within a custom event, as time specific functionality should be handled within the main event graph.

Why does my editor crash a lot when looking at my custom interactable object?