Issue with "Exploring Blueprints Tutorial" - Material Change on Click

[NM-92]

Hi everyone,

Kinda new to Unreal, so nice to meet you all. I’m on a learning path, currently trying to follow the “Exploring Blueprints” tutorial: LINK

Right now I’ve followed the three ‘Material Swapping’ videos nearly 10 times, redoing the whole thing and I can’t get it to work. I’ve barely any coding knowledge so this is a whole new world for me. I’ve come to a point where I kinda figured out where the logic isn’t working and I can see this:

I don’t know what else to share to try to figure this out, so please ask me for any other information you need. I’ll be happy to post it, but I really need to get through this before I give up

Thanks in advance for your time.

Best,

Nicolas

[NM-92]

Hi @anonymous_user_3867756a ,

Thanks for answering! I was so into the issue I actually forgot to clarify what happened, sorry for that. The overall goal for that part of the tutorial is to make the material of a mesh change, once that mesh is clicked:

So when I run the preview, I can see that when I click the mesh the logic goes as expected and cycles through each of those “Set Material” nodes, but once I open that function, I can see that it stops:

I don’t want to clutter the post with a ton of images, you can see what’s the logic in this video: https://learn.unrealengine.com/course/2436529/module/5373086?moduletoken=UHxxnDLPW8SgaLwUD5ziwOV0auDobANRXDoQaf9SJ1gG3QIzpfVA~2OKJrfKUcBq&LPId=90587

So basically what I’d like to know is where to start looking for the mistake so I can provide the necessary info here. I know it can be anywhere, but I can’t find an easier way to troubleshoot this.

Let me know if you think I’m missing sth!

Thanks.

Nicolas

[NM-92]

Here’s all I have on that Speaker list. If I understand correctly, here is where the tutorial ‘fills’ the Speaker List array with data:

I can see that the logic is setting up that variable, but you can see at the right of the image that the variable says 0 array elements. Then it goes here:

Also, 0 array elements. Somewhere along the logic that should be filled with 5 variants for that mesh, and I don’t see that happening.

So, it seems that that’s the problem, but I have no idea how to fix it.

Nicolas

[NM-92]

Hi @anonymous_user_3867756a,

I’m an idiot. Thank you so much !!! I went through all this like a hundred times and couldn’t spot that stupid thing. Anyways, a rookie mistake I guess. Once again, thanks for taking a look! Everything works now.

Nicolas