Working on dialogue system and buttons won't respond

My friend and I are working in blueprint and have been following this tutorial A new, community-hosted Unreal Engine Wiki - Announcements - Unreal Engine Forums

We have followed along and can not seem to find where we messed up. When we start the game and go over to the the NPC actor, the textblocks will not appear over the buttons. The confusing part for us is that the tutorial names the actor “textrendoractor” and the text “textrender1”. The only text change we have been seeing, is when we overlap with the NPC his text changes and it also changes when we leave. We also tried putting in default values for the questions in the variable names, but that didn’t yield any results. If the buttons worked and text appeared, we would be golden.

I apologize I can not be more specific, but any help would be appreciated.

Edit 1.5: It says the binding is pure. I am unsure of what this means. Pure is apparently made to not modify the members of the class in any way, but unchecking it makes the foreachloop in the button binding script not work.

Not sure if this helps, but as soon as I added a binding to the text, it was at that point that I could not see the text.