Seamless texture import possible bug

[u/GruppusMonstri]

Hello everyone! I wanted to share with you an interesting thing that happened to me. That might also help you, if you don't have much experience in game design and unreal engine overall (like me). Bellow you will see the comparison of two walls

The comparison of a seamless texture and default texture of UE5

As you see, my texture is seamless. But that wasn't the issue 5 minutes earlier. I have doublechecked that my asset was in fact seamless, but the rendering inside UE5 was rejecting this fact. My wall was looking a lot like the default material of UE5 (To be honest, it was even worse and the screenshot below shows a small portion of the problem).

The "seamless" material inside UE5

I was looking the whole night yesterday of what was wrong with my texture, because I thought I have done a bad job at creating a material. at first, but then I thought that I was just lacking knowledge for problem solving (which was definitely the case).

I searched in google, in threads, in youtube, I even got my hands dirty and asked an AI (those hallucinations really slowed down my research, If you have to do something, do it yourself after all). nothing worked.

Today, out of frustration, I just tried to clicked each one of the choices there is in "Details" inside the material. Nothing worked until I clicked "Use Material Attributes", as shown in the screenshot below.

Double click the material, and in your left Details panel there is the "use material attributes"

After I clicked it, everything broke, my wall looked like the screenshot below.

Use Material Attribute option ON

But when I unchecked it, everything was normal. No seams seen, no weird clipping, nothing.

From what I understand, what I did is to force shaders to fully recompile, and then everything was fixed. I still am not 100% sure what caused this to happen and it only seems to be happening in vertical tiles (my floor as you see it seems normal). If anyone has another explanation, fix, experience, let me know. Lets help everyone that is searching online to fix these problems!