Going off this thread: How to register to receive input events from dynamically added components?
It seems that dynamically added components cannot pick up input. I couldn’t find a straight answer if components should pick up input at all, but what did become apparent is that it is bad design to receive input through components. It should only be done on widgets, controlled pawns, and controllers. Which may be why it is unreliable on components.
I’m not 100% on this though, so not going to mark this as answer. But, thought it might be useful for someone in the future to know what I found.
TLDR: It is bad design to get input on components and isn’t designed for that, so even if I could get it to work, I shouldn’t.