Structure of the blueprint is problematic, need advice on debug

[yutong195]

I want to control a sequence of point light to shine in sequence with a delay. However, the blueprint seems not working properly and the light is not shining as intended. What is the problem with the blueprint?

[ClockworkOcean]

[Everynone]

@yutong195

What is the problem with the blueprint?

Many. To start with, your nodes are not connected, the Index is not increasing:

And the Delay at the end does not delay anything since, again, it has nothing connected to it.