On certain resolutions or when I scale the window, this line keeps appearing/disappearing:

What I tried, but didn’t work:
- Turning AA off
- Turning Anisotropic off
What works, but I can’t do: setting the texture “Wrap Mode” to “Clamp”, because I’m offsetting the texture so it would act as a scrollable background which keeps repeating.
What partially worked: Setting the texture “Filter Mode” to “Point (no filter)” . The line disappears, all is good, but for some reason the texture quality dramatically drops on some lower resolutions because of setting the “Filter Mode” to “Point (no filter)”. Here’s what I mean (lower mountain texture uses “Point (no filter)” and the upper one uses “Bilinear”):

This method would work, but I’m afraid that this quality drop might be too visible on a small Android phone screen.
Other information that might be useful: I’m putting this texture on a “Raw Image”, but even if I put this texture in a material and then put that material on a quad, the same line keeps popping in/out. So I’m thinking that this is not the problem. Though the funny thing is that by using the material and quad method, even if I use “Point (no filter)” that doesn’t help, but this doesn’t really matter since I prefer the “Raw Image” method.
Could it be some bleeding problem? Is there any way to fix it?