Are custom functions broken in 4.5.1?

Hi all,

So I recently decided to try to use functions for cross BP communication in 4.5.1.

What I am getting is a problem where every compile tells me I need a SKEL reference, which from what I can tell is a bug from what was experimental in 4.5.0 but due to lack of launcher functionality cannot revert to test. Just dragging an empty function to a new print wants a SKEL ref.

Use new blueprint menu system is unchecked.

Am I correct that this is a bug caused by updating from 4.5.0? (I had not tried functions at all before update…)