This is driving me nuts and I can’t find the solution anywhere. In 5.0+, the orange selection outline in the blueprint viewport seems to be turned off by default. The orange selection outline appears just fine in the general editor. It’s only missing in blueprints. If I click on an object in a blueprint I still get the move/scale/rotate widget, but that’s it.
I do not see an option to toggle this feature on or off in the blueprint editor, nor do I see it under editor preferences. In 4.x versions this was never a problem, so I’m not sure what I’m missing. I’m sure I’m just blind and completely overlooking the obvious answer.