I didn’t even realize there was another node graph that needed to be copied under “Event Graph Setup”… I just wanted to copy all the graphs and then read the article while looking them, so I didn’t read the fine print that this was yet again another image that wasn’t represented correctly… and even when I copied the nodes, I had to go back and forth and basically create new nodes because UE was not liking them at all. Thank you so much for that direction, and I finally got a compiled blueprint!
This unfortunately didn’t solve all my issues, but I saw your comment below about how you didn’t want to clutter up this post with specific issues, so I made a new post regarding an issue I have: Can't raise individual vertices from the Creating a Height Field Painter with Blueprints and Render Targets Tutorial - Programming & Scripting - Unreal Engine Forums
*I figured it out, and this was also due to a misrepresentation of the images: in the Construction Script image, it says to have the parent be ForceSplat, when the material that we’re supposed to make is called MAT_ForceSplat… and it just so happened that somewhere in my assets I had a ForceSplat material that I accidentally used instead. Changed this to MAT_Force_Splat and everything started to work as intended.