Strange line across one texture visible in render and uv editor

Support Materials and Textures
1

I am using Blender 2.79b and I got green line across one texture on unwrapped, flat, big surface. I used tiling and scaled the texture about 50 times.

zxzx
zxzx2000×1054 1.12 MB
What is this and how to solve this problem. I am using sphere HDRI and there is a grass from it under the surface. But the surface has no gap or anything like this.

2

Indeed more than odd. There is no transparency/translucency/refraction shader? Or compositor nodes? It’s semi-transparent, thus I ask. Otherwise can’t say more without a blend file.

3

No transparency. All looks normal. But you can see the line on UV. I have checked original texture and it has no line on it. But when you zoom in or out in UV editor, sometimes line disappear, but never from render. As you see the surface is huge and I see the line on every tile.

p2x
p2x2109×1227 583 KB

4

Might be a bug in Blender. Is thus GPU rendering? If yes, did you try CPU also? Otherwise I would need a blend file to figure it out.

5

Is the floor plane unwrapped? If it is, delete everything else and see if the problem persists. If it still happens, save as new file, purge everything unused (then save, revert, purge maybe several times). Then you share the file so we don’t have to guess.

6

I fixed it! Thank you guys!
I had never had problems with bugs, but this time it has happened.
The solution was just delating material from mesh and file and making it one more time after restarting blender file. Good it was a simple material and it tok 2 mins to recreate it.
No more green lines.
I wish you a happy New Year