Problem of binding event in widget

Hello fellows, i recently am doing a UI which shows how much bot is killed by player. I use the event dispatchers and below is the blueprint of the widget. Nothing happens if i use “event construct” to start. But if i change it to “event tick” then it will run correctly.

But you know the “event construct” should work right? anybody knows why?

Do your “Bot” actors exist in the level when you construct the widget? It will not work if you spawn your “Bot” class actors dynamically because Event Construct like Event Begin Play fires only once (probably before you have spawned bots).

Yessss man this is the problem!! I spend a whole day on it and you really save me. Thank you man really help!!