Material appears black and getting error message

Hello,

I am working in Unreal’s 4.15 trying to both create, apply, and paint a landscape. However, when I try to apply it, the Material appears black and whenever I try to paint any of the 3 textures I have used for the layers, it gives me the error message “This layer has no layer info assigned yet. You must create or assign a layer info before you can paint this layer.” I was initially following along with a YouTube video titled “Texturing a Landscape in UE4 (Unreal Engine 4)” (YouTube link: Texturing a Landscape in UE4 (Unreal Engine 4) - YouTube) Not sure what went wrong with Material with layers

Not sure if this would be considered a temporary work around or the actual solution, but while doing some more troubleshooting, with a different project to recreate my problem, I happened to add each layer with a layer info. is this the right solution? or is there a better one?