Assigning reference to an actor that implements an interface

I’m trying to reference an actor bar (that implements an interface BPI_baz) from another actor foo using the interface BPI_baz via level editor.

For this I create an editable variable someBaz of type BPI_baz in the A_Foo class / blueprint. Then I create instances of both actors in level editor ( foo and bar), and when I try to drag-n-drop actor bar to the variable someBaz on actor foo it doesn’t let me to - is that a bug or am I missing something?

I can still set up the reference in level blueprint, but that means I have to add extra logic to handle order of BeginPlay on actors and level (it will first occur for the actors, and then for the level, won’t it?)

It worked in unreal 4.13 (but only if I used “use selected asset from content browser” button while having actor bar selected in the world outliner), but doesn’t work at all in 4.19.2