Careless “reports” like this is a big reason why Epic ignores many bug reports.
Be careful when reporting anything and make sure you actually know what’s really going on…
You made me waste 20 minutes testing a blank project (since in mine it just works) and I have no idea what you’re talking about:
I copied that function from an Interface blueprint to SourceActor1 then to TargetComponent1 and everything is fine on the blank project (and projects I work on).
Just saying “it doesn’t work” doesn’t help in any way.