'Wait' in 2nd sequence not being used

I’m pretty new to Unreal Engine, and I’m currently working through a book written for 4.7. I’ve been able to fix all the issues that have popped up, however I’ve finally found one I can seem to Google-Fu my way out of.

This is how it is in the book, however it is not working at all.

This is the first work around I was able to figure out playing with it.

This is another work around I was able to get working

Is there some reason that the original could not be working? Perhaps a new way of doing it, or the book is simply out dated?